Dr. Eric A Serrano , MD
Internal Medicine • Wellesley, MA
40 Walnut Street, Suite 201
Wellesley, MA 024812102
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. Eric Serrano is listed in NPPES under Internal Medicine.
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NPI assigned on November 30, 2006; this date does not establish years in practice.
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Published CMS data list 992 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:
- 99213 — Established patient outpatient office visit: 266 service units.
- 99214 — Established patient outpatient office visit: 262 service units.
- 93000 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report: 102 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 9 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,985 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:
- Atorvastatin Calcium — 211 prescription fills, including refills.
- Lisinopril — 140 prescription fills, including refills.
- Butalbital-Acetaminophen-Caffe (Butalb/Acetaminophen/Caffeine) — 118 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 62 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 Internal Medicine in Wellesley, MA (2024, 58 clinicians with data). Median for this group: 959. Middle half: 460 to 1,605.
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,772 clinicians with data). Median for this group: 526. Middle half: 199 to 1,077.
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 1,120 in 2020 to 992 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
40 Walnut Street
Suite 201
Wellesley, MA 024812102
CMS Doctors and Clinicians lists 1 group name: Newton Wellesley Primary Care P C. 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
Warren Alpert Medical School Of Brown University
2004
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
135 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 $86,420 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 $69,152 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
4,079 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
$214,638 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)
Fewer than 11 payment records totaling $38.06 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
Years since graduation
22 years (graduated 2004)
CMS Doctors and Clinicians data list 2004 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?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Serrano 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. Serrano 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 Wellesley and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Internal Medicine in Wellesley, MA (2024, 58 clinicians with data). Median for this group: 959. Middle half: 460 to 1,605.
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,772 clinicians with data). Median for this group: 526. Middle half: 199 to 1,077.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Wellesley, MA (2024, 58 clinicians with data). Median for this group: $65,838. Middle half: $39,958 to $114,757.
A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,772 clinicians with data). Median for this group: $50,301. Middle half: $19,687 to $96,623.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Internal Medicine in Wellesley, MA (2024, 58 clinicians with data). Median for this group: $51,060. Middle half: $30,942 to $90,267.
A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,772 clinicians with data). Median for this group: $38,372. Middle half: $14,843 to $75,048.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Internal Medicine in Wellesley, MA (2024, 62 clinicians with data). Median for this group: 1,939. Middle half: 794 to 3,595.
Close to the middle for clinicians listed under Internal Medicine in Massachusetts (2024, 3,671 clinicians with data). Median for this group: 1,163. Middle half: 126 to 3,740.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in Wellesley, MA (2024, 62 clinicians with data). Median for this group: $141,910. Middle half: $47,828 to $222,522.
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,671 clinicians with data). Median for this group: $101,939. Middle half: $8,928 to $319,570.
83 active clinicians are listed under Internal Medicine with a practice address in Wellesley, MA (6,819 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Wellesley
55.4% of these 83 clinicians have the CMS telehealth indicator.
66.3% of these 83 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 decreased 11% from 1,120 in 2020 to 992 in 2024.
- 2020: 1,120
- 2021: 1,156
- 2022: 956
- 2023: 953
- 2024: 992
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Medicare-allowed amount
Medicare-allowed amount decreased 10% from $96,436 in 2020 to $86,420 in 2024.
- 2020: $96,436
- 2021: $114,721
- 2022: $93,545
- 2023: $92,028
- 2024: $86,420
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Paid by Medicare
Paid by Medicare decreased 10% from $76,885 in 2020 to $69,152 in 2024.
- 2020: $76,885
- 2021: $88,101
- 2022: $73,400
- 2023: $72,816
- 2024: $69,152
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 97% from 1,006 in 2020 to 1,985 in 2024.
- 2020: 1,006
- 2021: 1,172
- 2022: 1,421
- 2023: 1,756
- 2024: 1,985
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30-day fills
30-day fills increased 78% from 2,293 in 2020 to 4,079 in 2024.
- 2020: 2,293
- 2021: 2,722
- 2022: 3,237
- 2023: 3,806
- 2024: 4,079
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Part D drug cost
Part D drug cost increased 606% from $30,389 in 2020 to $214,638 in 2024.
- 2020: $30,389
- 2021: $83,972
- 2022: $112,024
- 2023: $244,303
- 2024: $214,638
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), 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 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $38.06.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Welch Allyn |
Debt forgiveness
Cash or cash equivalent
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None | General | $38.06 |
Source: CMS Open Payments, program year 2021, 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 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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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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266 | 108 | $279.67 | $99.35 |
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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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262 | 96 | $396.05 | $139.63 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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102 | 93 | $75.00 | $15.78 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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101 | 101 | $310.00 | $141.39 |
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36415
Insertion of needle into vein for collection of blood sample
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93 | 54 | $21.00 | $8.65 |
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82270
Stool analysis for blood to screen for colon tumors
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66 | 66 | $25.00 | $4.29 |
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G0008
Administration of influenza virus vaccine
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43 | 43 | $91.95 | $35.30 |
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90662
Influenza vaccine split virus, preservative free
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42 | 42 | $165.90 | $81.58 |
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99497
Advance care planning, first 30 minutes
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17 | 17 | $125.00 | $87.54 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 211 | 17,324 | $1,949.95 | 62 |
| Lisinopril | Lisinopril | 140 | 10,516 | $750.46 | 36 |
| Butalbital-Acetaminophen-Caffe | Butalb/Acetaminophen/Caffeine | 118 | 1,002 | $3,088.52 | — |
| Losartan Potassium | Losartan Potassium | 107 | 7,114 | $975.09 | 27 |
| Amlodipine Besylate | Amlodipine Besylate | 96 | 6,359 | $537.87 | 24 |
| Omeprazole | Omeprazole | 59 | 3,822 | $590.99 | 13 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 58 | 5,120 | $2,023.86 | 20 |
| Eliquis | Apixaban | 56 | 2,629 | $50,838.00 | 12 |
| Metoprolol Succinate | Metoprolol Succinate | 52 | 4,083 | $1,100.44 | 14 |
| Ezetimibe | Ezetimibe | 48 | 3,527 | $2,408.82 | 12 |
| Levothyroxine Sodium | Levothyroxine Sodium | 46 | 3,284 | $474.22 | 12 |
| Trazodone Hcl | Trazodone Hcl | 42 | 1,676 | $333.73 | — |
| Citalopram Hbr | Citalopram Hydrobromide | 41 | 1,792 | $176.25 | — |
| Simvastatin | Simvastatin | 36 | 3,240 | $333.74 | 12 |
| Metformin Hcl | Metformin Hcl | 35 | 2,730 | $200.26 | — |
| Finasteride | Finasteride | 32 | 2,508 | $411.67 | — |
| Lorazepam | Lorazepam | 32 | 685 | $133.53 | 15 |
| Hydralazine Hcl | Hydralazine Hcl | 31 | 1,164 | $556.22 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 30 | 2,640 | $110.50 | 11 |
| Tramadol Hcl | Tramadol Hcl | 29 | 529 | $87.43 | — |
| Ozempic | Semaglutide | 28 | 1,124 | $37,504.62 | — |
| Chlorthalidone | Chlorthalidone | 27 | 2,417 | $760.40 | — |
| Gabapentin | Gabapentin | 26 | 1,103 | $192.48 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 26 | 2,088 | $433.76 | — |
| Atenolol | Atenolol | 24 | 2,100 | $167.82 | — |
(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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20071001000782
MA
0446345706
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
Newton Wellesley Primary Care P C
40 Walnut St, Wellesley, MA 024812175
Phone: 7819433000
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
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Career & Practice History
NPI enumerated November 30, 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 November 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Wellesley
- Dr. William Holgerson, MD
- Dr. Shamvil Panjwani, MD
- Dr. James Levine, MD
- Dr. Jennifer Paterson, MD
- Dr. Judith Scott, MD
- Dr. Christopher Smith, MD
Mailing Address
40 Walnut Street, Suite 201
Wellesley, MA 024812102
Phone: 7812351224