Mark Porway, MD
Cardiovascular Disease Physician · Northampton, MA
Mark Porway, MD is a cardiovascular disease physician with a practice address in Northampton, Massachusetts, and NPI 1992765036, issued on Mar 24, 2006. Check the license (Massachusetts 58063, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Porway
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 58063 MA
Self-reported in NPPES; status is on the state search - Practice location
- 22 Atwood Dr, Northampton, MA 01060
- Phone
- (413) 570-4900
- Enumerated
- Mar 24, 2006
- Entity
- Type 1 · individual
Also registered at 22 Atwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eric Granowitz, MDInfectious Disease Physician1801855242
- Peter Halperin, MDPsychiatry Physician1992736482
- Dhruv Jani, DOGeriatric Medicine (Family Medicine) Physician1891355293
Verify Mark Porway in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 58063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
100% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
11 Medicare Part D claims, against an average of 3,149 among the 19,556 providers of this specialty who prescribed in Part D.
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.
Cardiovascular Disease Physician providers in Massachusetts
There are 910 cardiovascular disease physician records in Massachusetts.
Other cardiovascular disease physician records in Massachusetts
- Omar Abdel-Razek, MDBoston, MA1912780008
- Rishard Abdul, M.B.B.SSpringfield, MA1114412830
- Kenneth Adams, M.D.Haverhill, MA1720082787
- Nicholas Adamstein, MDBoston, MA1548897218
- Dale Adler, M.D.Boston, MA1295769966
- Nadeem Afridi, MDNewburyport, MA1619961372
- Hanna Ahmed, M.DWorcester, MA1417111428
- Malik Ahmed, MDBoston, MA1386165470
- Eric Michael Aker, M.D.Norwood, MA1073571030
- Shahad Al Chalaby, MDBurlington, MA1316444276
Common questions
What is Mark Porway, MD's NPI number?
Mark Porway, MD's National Provider Identifier (NPI) is 1992765036, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Porway, MD located?
The NPPES record lists a practice address at 22 Atwood Dr, Northampton, MA, 01060. Phone: (413) 570-4900. Providers update this record themselves, so call before visiting.
How can I verify Mark Porway, MD's license?
NPPES lists Massachusetts license number 58063, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Porway, MD prescribe under Medicare Part D?
In 2024, Mark Porway, MD had 11 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,149. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.