Marilyn R. Clark, M.D.
Internal Medicine Physician · Boston, MA
Marilyn R. Clark, M.D. is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1164534624, issued on Aug 31, 2006. Check the license (Massachusetts 44535, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marilyn R. Clark
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44535 MA
Self-reported in NPPES; status is on the state search - Practice location
- 30 Northampton Street, Boston, MA 02118
- Phone
- (617) 433-9601
- Enumerated
- Aug 31, 2006
- Record last updated
- Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (617) 445-6538
- Medicaid ID
- 6168213 MA
- Entity
- Type 1 · individual
Also registered at 30 Northampton Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marilyn R. Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 44535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,320 in Boston → All 6,825 in Massachusetts → Every provider in Boston →
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Common questions
What is Marilyn R. Clark, M.D.'s NPI number?
Marilyn R. Clark, M.D.'s National Provider Identifier (NPI) is 1164534624, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn R. Clark, M.D. located?
The NPPES record lists a practice address at 30 Northampton Street, Boston, MA, 02118. Phone: (617) 433-9601. Providers update this record themselves, so call before visiting.
How can I verify Marilyn R. Clark, M.D.'s license?
NPPES lists Massachusetts license number 44535, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.