Doctor profile · Federal record
Dr. Melissa Mahr, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Hopkinton, MA
- NPI 1164441705
- Accepts Medicare
- 30 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
77 W Main St Ste 204
Hopkinton, MA 017481689
(508) 731-2570
fax (508) 544-2859 - Additional location
-
169 W Main St
Hopkinton, MA 017482101
fax (508) 625-1354 - Mailing address
-
9 Industrial RD Ste 5
Milford, MA 017573736
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- September 3, 2025
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #205104
- Medicaid
- MA #2080010
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164441705. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
497
Distinct HCPCS
10
Medicare allowed
$58,883
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 185 | 105 | $139 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 97 | 70 | $97 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 83 | 83 | $142 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 24 | 21 | $182 | |
90662 |
Influenza vaccine split virus, preservative free | 18 | 17 | $71 | |
G0008 |
Administration of influenza virus vaccine | 18 | 17 | $31 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 16 | 16 | $16 | |
87428 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | 15 | 13 | $30 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 15 | 15 | $63 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 13 | 13 | $283 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 95. This provider delivers 5.2× the peer median.Open Payments
Industry payments received
All-time total
$72
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inspire Medical Systems, Inc. | 1 | $72.15 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,401
Patients
420
Total drug cost
$20,466
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 215 | 63 | $4,659 |
| Lisinopril | Generic | 172 | 58 | $2,125 |
| Amlodipine Besylate | Generic | 163 | 50 | $1,820 |
| Levothyroxine Sodium | Generic | 144 | 43 | $2,195 |
| Hydrochlorothiazide | Generic | 86 | 31 | $541 |
| Losartan Potassium | Generic | 78 | 24 | $1,742 |
| Omeprazole | Generic | 71 | 26 | $1,025 |
| Gabapentin | Generic | 68 | 17 | $799 |
| Simvastatin | Generic | 66 | 22 | $864 |
| Sertraline Hcl | Generic | 64 | 16 | $703 |
Hospital affiliations
Frequently asked questions
What is Dr. Melissa Mahr's medical specialty?
Dr. Melissa Mahr practices Internal Medicine Physician in Hopkinton, MA.
Where does Dr. Melissa Mahr practice?
Dr. Melissa Mahr practices at 77 W Main St Ste 204, Hopkinton, MA 017481689. Office phone: 5087312570.
What is Dr. Melissa Mahr's NPI?
Dr. Melissa Mahr's National Provider Identifier (NPI) is 1164441705, issued by NPPES.
Does Dr. Melissa Mahr accept Medicare assignment?
Yes. Dr. Melissa Mahr accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Mahr commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.