Dr. Nathan D Peffer , MD
Urology • Doylestown, PA
102 Progress Dr Ste 101
Doylestown, PA 189012516
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on May 31, 2015; this date does not establish years in practice.
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Published CMS data list 1,338 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G2211 — Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 336 service units.
- 99214 — Established patient outpatient office visit: 328 service units.
- 99213 — Established patient outpatient office visit: 79 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 18 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,172 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Tamsulosin Hcl — 354 prescription fills, including refills.
- Finasteride — 267 prescription fills, including refills.
- Myrbetriq (Mirabegron) — 137 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 20 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Urology in Pennsylvania (2024, 390 clinicians with data). Median for this group: 1,096. Middle half: 513 to 2,950.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 271 in 2020 to 1,338 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
102 Progress Dr Ste 101
Doylestown, PA 189012516
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Philadelphia, PA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Clinical Specialty Associates; Via Affiliates. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Temple University School Of Medicine
2015
What Public CMS Data Show
Urology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
406 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $124,934 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $92,656 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
2,352 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$122,722 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $543.35 across 16 records.
By nature of payment
- Food and Beverage: $543.35 across 16 records.
Reporting-company totals (3 largest of 8)
- Medtronic, Inc.: $366.35 across 8 records.
- Smith+Nephew, Inc.: $42.96 across 2 records.
- Boston Scientific Corporation: $39.87 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
11 years (graduated 2015)
CMS Doctors and Clinicians data list 2015 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2015
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Peffer has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Peffer as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Doylestown and Pennsylvania
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Urology in Pennsylvania (2024, 390 clinicians with data). Median for this group: 1,096. Middle half: 513 to 2,950.
Too few clinicians listed under Urology in Doylestown have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
Close to the middle for clinicians listed under Urology in Pennsylvania (2024, 390 clinicians with data). Median for this group: $94,510. Middle half: $45,936 to $184,918.
Too few clinicians listed under Urology in Doylestown have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Urology in Pennsylvania (2024, 390 clinicians with data). Median for this group: $69,281. Middle half: $34,043 to $137,962.
Too few clinicians listed under Urology in Doylestown have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Urology in Pennsylvania (2024, 448 clinicians with data). Median for this group: 889. Middle half: 232 to 2,017.
Too few clinicians listed under Urology in Doylestown have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under Urology in Pennsylvania (2024, 448 clinicians with data). Median for this group: $72,128. Middle half: $10,730 to $241,715.
Too few clinicians listed under Urology in Doylestown have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Urology with a practice address in Doylestown, PA (664 in Pennsylvania).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 394% from 271 in 2020 to 1,338 in 2024.
- 2020: 271
- 2021: 916
- 2022: 975
- 2023: 1,126
- 2024: 1,338
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Medicare-allowed amount
Medicare-allowed amount increased 448% from $22,809 in 2020 to $124,934 in 2024.
- 2020: $22,809
- 2021: $97,770
- 2022: $93,875
- 2023: $113,748
- 2024: $124,934
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Paid by Medicare
Paid by Medicare increased 414% from $18,019 in 2020 to $92,656 in 2024.
- 2020: $18,019
- 2021: $74,607
- 2022: $69,119
- 2023: $84,412
- 2024: $92,656
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 755% from 137 in 2020 to 1,172 in 2024.
- 2020: 137
- 2021: 545
- 2022: 864
- 2023: 1,120
- 2024: 1,172
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30-day fills
30-day fills increased 1144% from 189 in 2020 to 2,352 in 2024.
- 2020: 189
- 2021: 849
- 2022: 1,477
- 2023: 2,105
- 2024: 2,352
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Part D drug cost
Part D drug cost increased 1534% from $7,512 in 2020 to $122,722 in 2024.
- 2020: $7,512
- 2021: $73,965
- 2022: $114,942
- 2023: $126,622
- 2024: $122,722
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 48% from $1,037.74 in 2021 to $543.35 in 2025.
- 2021: $1,037.74
- 2022: $1,009.96
- 2023: $1,423.18
- 2024: $1,358.83
- 2025: $543.35
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 16 records totaling $543.35.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $142.41 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $70.27 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $62.54 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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LithoVue | General | $39.87 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $23.64 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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BOTOX | General | $23.28 |
| Smith+Nephew, Inc. |
Food and Beverage
In-kind items and services
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STRAVIX | General | $22.98 |
| Smith+Nephew, Inc. |
Food and Beverage
In-kind items and services
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STRAVIX PL | General | $19.98 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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ERLEADA | General | $19.79 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $19.49 |
| Olympus America Inc. |
Food and Beverage
In-kind items and services
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iTIND System | General | $18.62 |
| COLOPLAST CORP |
Food and Beverage
In-kind items and services
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Luja Coude | General | $17.53 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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BIOSYN | General | $17.44 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $15.75 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Xtandi | General | $14.95 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $14.81 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2020–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
336 | 232 | $25.00 | $16.62 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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328 | 231 | $205.00 | $131.20 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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79 | 71 | $145.00 | $93.21 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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78 | 78 | $270.00 | $171.53 |
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81002
Urinalysis, manual test
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69 | 65 | $20.00 | $3.41 |
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51720
Instillation of anti-cancer drug into bladder
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65 | 11 | $250.00 | $91.18 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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57 | 46 | $290.00 | $184.98 |
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51798
Ultrasound measurement of bladder capacity after voiding
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51 | 41 | $48.00 | $11.75 |
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52000
Diagnostic exam of bladder and urethra using an endoscope
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51 | 39 | $450.00 | $81.22 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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51 | 25 | $150.00 | $79.53 |
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99231
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
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40 | 24 | $120.00 | $50.00 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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32 | 32 | $275.00 | $132.02 |
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55700
Biopsy of prostate gland
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23 | 23 | $1500.00 | $131.69 |
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76942
Ultrasonic guidance for needle placement
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23 | 23 | $269.50 | $30.12 |
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52332
Insertion of stent in ureter using an endoscope
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16 | 13 | $800.00 | $157.24 |
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52356
Crushing of stone of ureter with insertion of stent using an endoscope
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16 | 14 | $850.00 | $424.55 |
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52601
Removal of prostate gland using an electrocautery knife through urethra with control of bleeding using an endoscope
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12 | 12 | $2020.00 | $741.51 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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11 | 11 | $300.00 | $174.23 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 354 | 26,979 | $6,363.46 | 123 |
| Finasteride | Finasteride | 267 | 18,211 | $5,392.78 | 69 |
| Myrbetriq | Mirabegron | 137 | 5,484 | $80,217.17 | 33 |
| Potassium Citrate Er | Potassium Citrate | 44 | 3,186 | $5,163.82 | 11 |
| Methenamine Hippurate | Methenamine Hippurate | 38 | 2,046 | $3,936.75 | 11 |
| Cefdinir | Cefdinir | 38 | 325 | $512.36 | 32 |
| Solifenacin Succinate | Solifenacin Succinate | 35 | 1,950 | $577.09 | 12 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 34 | 1,248 | $719.23 | 21 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 28 | 130 | $79.88 | 27 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 27 | 143 | $238.39 | 23 |
| Trospium Chloride | Trospium Chloride | 25 | 1,170 | $1,014.80 | — |
| Gemtesa | Vibegron | 23 | 1,042 | $16,515.05 | — |
| Estradiol | Estradiol | 21 | 1,478 | $1,186.20 | 13 |
| Levofloxacin | Levofloxacin | 16 | 161 | $95.90 | 13 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 16 | 133 | $148.98 | 14 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 15 | 68 | $47.51 | 13 |
| Tadalafil | Tadalafil | 15 | 571 | $95.31 | — |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 14 | 446 | $253.54 | 11 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 14 | 111 | $55.65 | 12 |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 11 | 990 | $108.51 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-10-28NUCC Taxonomy Code: 208800000X
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - UROLOGY
I20200720000010
PA
2668896093
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Clinical Specialty Associates
102 Progress Dr, Doylestown, PA 189012516
Phone: 2152300600
Via Affiliates
102 Progress Dr, Doylestown, PA 189012516
Phone: 2152300600
Secondary Practice Locations
3401 N Broad St
Philadelphia, PA 191405103
Phone: 2157072000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 102 PROGRESS DR STE 101, DOYLESTOWN, PA 189012516 (Tel: 2152300600)
Registered at PO BOX 829641, PHILADELPHIA, PA 191820001 (Tel: 2673705296)
Urology (license number reported to NPPES: PA MD471258)
NPI status registered as active in NPPES database
Registered at 3401 N BROAD ST, PHILADELPHIA, PA 191405103 (Tel: 2157072000)
Registered at 3401 N BROAD ST, PHILADELPHIA, PA 191405103 (Tel: 2157072000)
Recorded as NATHAN PEFFER, M.D.
Surgery (license number reported to NPPES: PA MT209031)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Urology Specialists in Doylestown
- Dr. Salil Gabale, MD
- Dr. Steven Flashner, MD
- Dr. Kevin Fitzgerald, MD
- Dr. Radhika Ragam, MD
- Dr. Albert Ruenes, MD
More public profiles in Pennsylvania
Directory navigation, in NPI number order.
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- Lawrence Brent, MD Internal Medicine - Rheumatology · Philadelphia
- Jeffrey Verzella Family Medicine · Williamsport
- Amy Simms-Danner, CRNP Registered Nurse · Pittsburgh
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- Joshua Bemporad, MD Radiology - Diagnostic Radiology · Allentown
- David Borsos, PhD Psychologist - Clinical · Bethlehem
- Daniel Conway, MD Pediatrics - Pediatric Allergy/Immunology · Philadelphia
- Anthony Ferretti, DO Orthopaedic Surgery · Erie
- Shelly Hahn, MA, CCC, SLP Speech-Language Pathologist · Haverford
- Kelly Toth, PA-C Physician Assistant · Lehighton
- George Maish, MD Surgery - Surgical Critical Care · Lancaster
Mailing Address
Po Box 829641
Philadelphia, PA 191820001
Phone: 2673705296