Dr. Allison Oler , MD
Internal Medicine • Radnor, PA
250 King Of Prussia Road
Radnor, PA 190875220
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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Dr. Allison Oler is listed in NPPES under Internal Medicine.
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NPI assigned on May 27, 2006; this date does not establish years in practice.
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Published CMS data list 727 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:
- 99214 — Established patient outpatient office visit: 188 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 183 service units.
- 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: 112 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 10 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,696 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:
- Rosuvastatin Calcium — 283 prescription fills, including refills.
- Atorvastatin Calcium — 228 prescription fills, including refills.
- Losartan Potassium — 195 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 57 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 60% of clinicians listed under Internal Medicine in Radnor, PA (2024, 12 clinicians with data). Median for this group: 1,105. Middle half: 424 to 1,570.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Pennsylvania (2024, 3,785 clinicians with data). Median for this group: 537. Middle half: 226 to 1,059.
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 667 in 2020 to 727 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
250 King Of Prussia Road
Radnor, PA 190875220
CMS Doctors and Clinicians lists 1 group name: Bryn Mawr Personalized Primary Care. 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
University Of Chicago, Pritzker School Of Medicine
1994
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
335 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 $83,824 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 $63,832 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
7,185 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
$144,004 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
32 years (graduated 1994)
CMS Doctors and Clinicians data list 1994 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
2006
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. Oler 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. Oler 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 Radnor and Pennsylvania
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 60% of clinicians listed under Internal Medicine in Radnor, PA (2024, 12 clinicians with data). Median for this group: 1,105. Middle half: 424 to 1,570.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Pennsylvania (2024, 3,785 clinicians with data). Median for this group: 537. Middle half: 226 to 1,059.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Radnor, PA (2024, 12 clinicians with data). Median for this group: $79,156. Middle half: $34,184 to $89,652.
A higher Medicare-allowed amount than 65% of clinicians listed under Internal Medicine in Pennsylvania (2024, 3,785 clinicians with data). Median for this group: $52,547. Middle half: $22,093 to $99,718.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Radnor, PA (2024, 12 clinicians with data). Median for this group: $53,300. Middle half: $28,199 to $66,655.
A higher Medicare payment amount than 65% of clinicians listed under Internal Medicine in Pennsylvania (2024, 3,785 clinicians with data). Median for this group: $39,855. Middle half: $16,891 to $76,508.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Internal Medicine in Radnor, PA (2024, 13 clinicians with data). Median for this group: 2,663. Middle half: 1,352 to 3,783.
More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Pennsylvania (2024, 4,127 clinicians with data). Median for this group: 563. Middle half: 93 to 4,863.
Part D drug cost
Close to the middle for clinicians listed under Internal Medicine in Radnor, PA (2024, 13 clinicians with data). Median for this group: $144,004. Middle half: $45,651 to $314,942.
Close to the middle for clinicians listed under Internal Medicine in Pennsylvania (2024, 4,127 clinicians with data). Median for this group: $49,071. Middle half: $2,009 to $414,887.
17 active clinicians are listed under Internal Medicine with a practice address in Radnor, PA (7,304 in Pennsylvania).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Radnor
41.2% of these 17 clinicians have the CMS telehealth indicator.
82.4% of these 17 clinicians are listed by CMS as accepting Medicare assignment.
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 varied from year to year: 667 in 2020 and 727 in 2024.
- 2020: 667
- 2021: 639
- 2022: 862
- 2023: 982
- 2024: 727
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Medicare-allowed amount
Medicare-allowed amount increased 23% from $68,399 in 2020 to $83,824 in 2024.
- 2020: $68,399
- 2021: $73,373
- 2022: $108,480
- 2023: $133,750
- 2024: $83,824
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Paid by Medicare
Paid by Medicare increased 13% from $56,274 in 2020 to $63,832 in 2024.
- 2020: $56,274
- 2021: $57,478
- 2022: $82,958
- 2023: $103,901
- 2024: $63,832
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 35% from 4,135 in 2020 to 2,696 in 2024.
- 2020: 4,135
- 2021: 3,141
- 2022: 1,913
- 2023: 2,456
- 2024: 2,696
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30-day fills
30-day fills decreased 34% from 10,825 in 2020 to 7,185 in 2024.
- 2020: 10,825
- 2021: 8,293
- 2022: 4,978
- 2023: 6,445
- 2024: 7,185
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Part D drug cost
Part D drug cost decreased 19% from $177,668 in 2020 to $144,004 in 2024.
- 2020: $177,668
- 2021: $128,834
- 2022: $96,862
- 2023: $180,338
- 2024: $144,004
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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, 2017–2024; 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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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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188 | 159 | $235.00 | $130.89 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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183 | 183 | $240.00 | $131.81 |
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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
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112 | 100 | $19.66 | $16.39 |
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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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106 | 95 | $340.00 | $184.69 |
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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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67 | 66 | $155.00 | $91.50 |
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G0008
Administration of influenza virus vaccine
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21 | 21 | $35.00 | $31.70 |
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90662
Influenza vaccine split virus, preservative free
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14 | 14 | $180.00 | $81.82 |
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G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
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13 | 13 | $373.00 | $168.65 |
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G0009
Administration of pneumococcal vaccine
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12 | 12 | $45.00 | $33.29 |
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90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
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11 | 11 | $710.45 | $286.23 |
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 |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 283 | 25,422 | $5,298.70 | 91 |
| Atorvastatin Calcium | Atorvastatin Calcium | 228 | 19,914 | $2,337.14 | 80 |
| Losartan Potassium | Losartan Potassium | 195 | 16,380 | $2,312.91 | 55 |
| Levothyroxine Sodium | Levothyroxine Sodium | 192 | 17,028 | $2,272.78 | 61 |
| Amlodipine Besylate | Amlodipine Besylate | 161 | 13,653 | $1,146.17 | 54 |
| Hydrochlorothiazide | Hydrochlorothiazide | 136 | 11,875 | $871.63 | 43 |
| Escitalopram Oxalate | Escitalopram Oxalate | 82 | 6,984 | $1,535.52 | 28 |
| Sertraline Hcl | Sertraline Hcl | 71 | 5,730 | $852.67 | 24 |
| Lisinopril | Lisinopril | 66 | 5,490 | $423.91 | 21 |
| Trazodone Hcl | Trazodone Hcl | 58 | 4,892 | $550.27 | 21 |
| Synthroid | Levothyroxine Sodium | 56 | 4,860 | $3,803.97 | 16 |
| Metformin Hcl Er | Metformin Hcl | 52 | 3,960 | $312.93 | 16 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 52 | 4,080 | $1,854.43 | 16 |
| Pravastatin Sodium | Pravastatin Sodium | 51 | 3,899 | $663.86 | 14 |
| Alendronate Sodium | Alendronate Sodium | 50 | 4,202 | $451.08 | 16 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 50 | 4,080 | $1,004.26 | 15 |
| Metformin Hcl | Metformin Hcl | 44 | 3,869 | $305.90 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 42 | 2,156 | $402.50 | 15 |
| Omeprazole | Omeprazole | 41 | 2,880 | $633.10 | 12 |
| Mirtazapine | Mirtazapine | 38 | 2,190 | $383.29 | 11 |
| Simvastatin | Simvastatin | 35 | 3,030 | $263.95 | 12 |
| Metoprolol Succinate | Metoprolol Succinate | 35 | 3,090 | $621.25 | 13 |
| Valacyclovir | Valacyclovir Hcl | 32 | 648 | $745.59 | 14 |
| Montelukast Sodium | Montelukast Sodium | 29 | 2,531 | $652.71 | 12 |
| Fluoxetine Hcl | Fluoxetine Hcl | 29 | 2,610 | $292.35 | — |
(top 25 shown)
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
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20050425000911
PA
2769421254
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
Bryn Mawr Personalized Primary Care
937 E Haverford Rd, Bryn Mawr, PA 190103800
Phone: 2672257152
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Rheumatology
Doctor of Medicine (M.D.), Master of Public Health
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Rheumatology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated May 27, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Radnor
- Dr. Richard Bearoff, MD
- Marie Lindner
- Dr. Steven Feinstein, MD
- Dr. Esther Yoo, MD
- Dr. Sarah Schultz, MD
- Dr. Kristina Casadei, MD
Mailing Address
250 King Of Prussia Road
Radnor, PA 190875220
Phone: 6109025700