John Sos, M.D.
Prescribing (Medical) Psychologist · Belmont, MA
John Sos, M.D. is a prescribing (medical) psychologist with a practice address in Belmont, Massachusetts, and NPI 1780884676, issued on Jul 19, 2007. Check the license (Massachusetts 37735, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Sos
- Credential
- M.D.
- Primary taxonomy
- Prescribing (Medical) Psychologist 103TP0016X
- License number
- 37735 MA
Self-reported in NPPES; status is on the state search - Practice location
- 8 Clifton St, Belmont, MA 02478
- Phone
- (617) 484-7847
- Enumerated
- Jul 19, 2007
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 2039826 MA
- Entity
- Type 1 · individual
6 nearest prescribing (medical) psychologist records → All 7 in Massachusetts → Look up another NPI →
Verify John Sos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 37735Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average prescribing (medical) psychologist in 2024
173 Medicare Part D claims for 21 beneficiaries, against an average of 905 among the 106 providers of this specialty who prescribed in Part D.
Most prescribed
- Bupropion Hcl23 claims
- Citalopram Hbr19 claims
- Gabapentin13 claims
- Dextroamphetamine-Amphetamine12 claims
- Desipramine Hcl11 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.
Prescribing (Medical) Psychologist providers in Massachusetts
There are 7 prescribing (medical) psychologist records in Massachusetts.
All 7 in Massachusetts → Every provider in Belmont → Prescribing (Medical) Psychologist nationwide →
The 6 prescribing (medical) psychologist records with the nearest ZIP codes
- Richard Brostoff, MDLexington, MA 024211396875951
- Caroline Hellman, PH.D.Cambridge, MA 021381790991966
- Marly CadetStoughton, MA 020721922670140
- Anita Freeman, RNCSNewbury, MA 019511952498354
- Jasmine LafortuneDanvers, MA 019231144140971
- John ChirbanCarlisle, MA 017411992921282
Common questions
What is John Sos, M.D.'s NPI number?
John Sos, M.D.'s National Provider Identifier (NPI) is 1780884676, issued on Jul 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Sos, M.D. located?
The NPPES record lists a practice address at 8 Clifton St, Belmont, MA, 02478. Phone: (617) 484-7847. Providers update this record themselves, so call before visiting.
How can I verify John Sos, M.D.'s license?
NPPES lists Massachusetts license number 37735, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does John Sos, M.D. prescribe under Medicare Part D?
In 2024, John Sos, M.D. had 173 Medicare Part D claims for 21 beneficiaries; the average among prescribing (medical) psychologist prescribers was 905. 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.