Byron Vartan Hartunian, M.D.
Orthopaedic Surgery Physician · Cambridge, MA
Byron Vartan Hartunian, M.D. is an orthopaedic surgery physician with a practice address in Cambridge, Massachusetts, and NPI 1700986122, issued on Sep 25, 2006. Check the license (Massachusetts 40158, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Byron Vartan Hartunian
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 40158 MA
Self-reported in NPPES; status is on the state search - Practice location
- 777 Concord Ave, Cambridge, MA 02138
- Phone
- (617) 864-5700
- Enumerated
- Sep 25, 2006
- Record last updated
- Feb 4, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (617) 864-0883
- Medicaid ID
- 9727302 MA
- Medicare enrollment
- Enrolled (PECOS I20051018001208); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 692 in Massachusetts → Look up another NPI →
Also registered at 777 Concord Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Byron Vartan Hartunian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 40158Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
61 Medicare Part D claims, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.
Most prescribed
- Cialis12 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.
Byron Vartan Hartunian among 692 orthopaedic surgery physician records in Massachusetts
Byron Vartan Hartunian, M.D. is one of 692 orthopaedic surgery physician records with a practice address in Massachusetts. 76% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1975 · median 2004 among the 441 with a school on file
- Record last updated2009 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Massachusetts
There are 692 orthopaedic surgery physician records in Massachusetts.
All 692 in Massachusetts → Every provider in Cambridge → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Ronald Geiger, MDCambridge, MA 021381386633154
- Elliott Thrasher, MDCambridge, MA 021381598754368
- Leo Troy, MDCambridge, MA 021381780673558
- Samuel Doppelt, MDCambridge, MA 021391659443430
- Jason Freedman, M.D.Cambridge, MA 021391710100854
- Jillian Gruber, MDCambridge, MA 021391538699772
- William Lipman, MDCambridge, MA 021391417022054
- Gerald Steinberg, MDCambridge, MA 021391740355148
Common questions
What is Byron Vartan Hartunian, M.D.'s NPI number?
Byron Vartan Hartunian, M.D.'s National Provider Identifier (NPI) is 1700986122, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Byron Vartan Hartunian, M.D. located?
The NPPES record lists a practice address at 777 Concord Ave, Cambridge, MA, 02138. Phone: (617) 864-5700. Providers update this record themselves, so call before visiting.
How can I verify Byron Vartan Hartunian, M.D.'s license?
NPPES lists Massachusetts license number 40158, 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 Byron Vartan Hartunian, M.D. prescribe under Medicare Part D?
In 2024, Byron Vartan Hartunian, M.D. had 61 Medicare Part D claims; the average among orthopaedic surgery physician prescribers was 346. 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.