Nathaniel Gunn, M.D.
Internal Medicine Physician · Waltham, MA
Nathaniel Gunn, M.D. is an internal medicine physician with a practice address in Waltham, Massachusetts, and NPI 1912041963, issued on Feb 16, 2007. Check the license on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Nathaniel Gunn
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A77328 CA
Self-reported in NPPES; status is on the state search - Practice location
- 201 Jones RD, Waltham, MA 02451
- Phone
- (781) 693-3786
- Enumerated
- Feb 16, 2007
- Record last updated
- May 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (781) 207-0097
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Verify Nathaniel Gunn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Nathaniel Gunn among 6,825 internal medicine physician records in Massachusetts
Nathaniel Gunn, M.D. 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 not. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- 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).
32 internal medicine physician records list a practice address in Waltham
They are 32 of the 2,111 NPPES records with a practice address in Waltham, 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 6,825 in Massachusetts → Every provider in Waltham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Devasena Balasubramaniam, M.D.Waltham, MA 024511396936498
- Elenie Bartzokis, M.D.Waltham, MA 024511992827067
- Thomas Fry, MDWaltham, MA 024511588763908
- Bard Geesaman, M.D.Waltham, MA 024511790929123
- Christina Gelev, MDWaltham, MA 024511518958131
- Brittany Hansen, MDWaltham, MA 024511508515297
- Steven Kanner, MDWaltham, MA 024511740270289
- Monica Manandhar, MDWaltham, MA 024511639157910
Common questions
What is Nathaniel Gunn, M.D.'s NPI number?
Nathaniel Gunn, M.D.'s National Provider Identifier (NPI) is 1912041963, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Gunn, M.D. located?
The NPPES record lists a practice address at 201 Jones RD, Waltham, MA, 02451. Phone: (781) 693-3786. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Gunn, M.D.'s license?
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.