Ohn Aaron Chow, M.D., PH.D.
Allergy & Immunology Physician · Boston, MA
Ohn Aaron Chow, M.D., PH.D. is an allergy & immunology physician with a practice address in Boston, Massachusetts, and NPI 1447663380, issued on Jun 9, 2014. Check the license (Massachusetts 609657, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ohn Aaron Chow
- Credential
- M.D., PH.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 609657 MA
260538 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St., Boston, MA 02114
- Phone
- (585) 721-7881
- Enumerated
- Jun 9, 2014
- Record last updated
- Mar 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190725000112); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 121 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brian Baccari, PA-CPhysician Assistant1124338546
- Jennifer Belmonte, PA-CPhysician Assistant1184778185
- Eyal Benjamin Ben Assa, MDInternal Medicine Physician1740720937
Verify Ohn Aaron Chow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 609657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Lahey Clinic IncBurlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ohn Aaron Chow among 121 allergy & immunology physician records in Massachusetts
Ohn Aaron Chow, M.D., PH.D. is one of 121 allergy & immunology physician records with a practice address in Massachusetts. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 83% of them.
- NPI issued2014 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2014 · median 2003 among the 86 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Massachusetts
There are 121 allergy & immunology physician records in Massachusetts.
All 121 in Massachusetts → Every provider in Boston → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Aleena Banerji, MDBoston, MA 021141063495562
- Jocelyn Farmer, MD, PHDBoston, MA 021141194162321
- Jeffrey Gelfand, MDBoston, MA 021141114917986
- Lynda Kabbash, MDBoston, MA 021141124006515
- Aidan Long, MDBoston, MA 021141841280039
- Mandakolathur Murali, MDBoston, MA 021141891718250
- Sarita Patil, MDBoston, MA 021141699839597
- Chen Rosenberg, M.D.Boston, MA 021141841533569
Common questions
What is Ohn Aaron Chow, M.D., PH.D.'s NPI number?
Ohn Aaron Chow, M.D., PH.D.'s National Provider Identifier (NPI) is 1447663380, issued on Jun 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ohn Aaron Chow, M.D., PH.D. located?
The NPPES record lists a practice address at 55 Fruit St., Boston, MA, 02114. Phone: (585) 721-7881. Providers update this record themselves, so call before visiting.
How can I verify Ohn Aaron Chow, M.D., PH.D.'s license?
NPPES lists Massachusetts license number 609657, 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.
What is Ohn Aaron Chow, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.