Mohamed Azzam Mehssen, MD
Internal Medicine Physician · South Boston, MA
Mohamed Azzam Mehssen, MD is an internal medicine physician with a practice address in South Boston, Massachusetts, and NPI 1578536389, issued on Feb 10, 2006. Check the license (Massachusetts 80413, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mohamed Azzam Mehssen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 80413 MA
Self-reported in NPPES; status is on the state search - Practice location
- 409 W Broadway, South Boston, MA 02127
- Phone
- (617) 269-7500
- Enumerated
- Feb 10, 2006
- Record last updated
- Feb 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (617) 464-7512
- Medicare enrollment
- Enrolled (PECOS I20060329000152); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 409 W Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pamela Cattel, MDInternal Medicine Physician1023081841
- Megan Chapman, NPAdult Health Nurse Practitioner1154654556
- Christina Curtis, RN, APRNPediatric Nurse Practitioner1689152951
- Amelia FisherPediatrics Physician1588920284
Verify Mohamed Azzam Mehssen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 80413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,883 Medicare Part D claims for 283 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 141 claims were for opioids.
Most prescribed
- Atorvastatin Calcium345 claims
- Lisinopril179 claims
- Metoprolol Succinate126 claims
- Metformin Hcl116 claims
- Omeprazole112 claims
- Levothyroxine Sodium83 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $125.00
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- South Boston Community Health CenterSouth Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mohamed Azzam Mehssen among 6,825 internal medicine physician records in Massachusetts
Mohamed Azzam Mehssen, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1988 · median 2004 among the 4,103 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 internal medicine physician records list a practice address in South Boston
They are 7 of the 224 NPPES records with a practice address in South Boston, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in South Boston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pamela Cattel, MDSouth Boston, MA 021271023081841
- Suru Lin, M.D., M.P.H.South Boston, MA 021271316112162
- Calvin Ross, M.D.South Boston, MA 021271326178922
- Sheel Saxena, MDSouth Boston, MA 021271629041462
- James Scharback, M.D.Boston, MA 021271457401598
- Sarah Sloan, M.D.South Boston, MA 021271770719460
- Sujata Welankiwar, M.D.South Boston, MA 021271881759512
- Reginald Barnett, MDMattapan, MA 021261649207051
Common questions
What is Mohamed Azzam Mehssen, MD's NPI number?
Mohamed Azzam Mehssen, MD's National Provider Identifier (NPI) is 1578536389, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mohamed Azzam Mehssen, MD located?
The NPPES record lists a practice address at 409 W Broadway, South Boston, MA, 02127. Phone: (617) 269-7500. Providers update this record themselves, so call before visiting.
How can I verify Mohamed Azzam Mehssen, MD's license?
NPPES lists Massachusetts license number 80413, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mohamed Azzam Mehssen, MD prescribe under Medicare Part D?
In 2024, Mohamed Azzam Mehssen, MD had 2,883 Medicare Part D claims for 283 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.