Jocelyn R. Farmer, MD, PHD
Allergy & Immunology Physician · Boston, MA
Jocelyn R. Farmer, MD, PHD is an allergy & immunology physician with a practice address in Boston, Massachusetts, and NPI 1194162321, issued on May 29, 2013. Check the license (Massachusetts 270403, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jocelyn R. Farmer
- Credential
- MD, PHD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 270403 MA
L-255467 MA
Self-reported in NPPES; status is on the state search - Practice location
- Massachusetts General Hospital, Boston, MA 02114
- Phone
- (617) 726-2865
- Enumerated
- May 29, 2013
- Record last updated
- Aug 24, 2022
- Medicare enrollment
- Enrolled (PECOS I20170911002140); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2013
- 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 Massachusetts General Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jocelyn R. Farmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 270403Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
349 Medicare Part D claims for 56 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Xolair53 claims
- Montelukast Sodium29 claims
- Dupixent Pen26 claims
- Azithromycin21 claims
- Epinephrine19 claims
- Privigen18 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.
Industry payments in 2024: $5,337.60
8 payments; by number, the most common kind was consulting fee; the largest payer was Pharming Healthcare, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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).
Jocelyn R. Farmer among 121 allergy & immunology physician records in Massachusetts
Jocelyn R. Farmer, MD, PHD 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 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 17% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2013 · median 2003 among the 86 with a school on file
- Record last updated2022 · 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
- Ohn Chow, M.D., PH.D.Boston, MA 021141447663380
- 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 Jocelyn R. Farmer, MD, PHD's NPI number?
Jocelyn R. Farmer, MD, PHD's National Provider Identifier (NPI) is 1194162321, issued on May 29, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jocelyn R. Farmer, MD, PHD located?
The NPPES record lists a practice address at Massachusetts General Hospital, Boston, MA, 02114. Phone: (617) 726-2865. Providers update this record themselves, so call before visiting.
How can I verify Jocelyn R. Farmer, MD, PHD's license?
NPPES lists Massachusetts license number 270403, 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 Jocelyn R. Farmer, MD, PHD prescribe under Medicare Part D?
In 2024, Jocelyn R. Farmer, MD, PHD had 349 Medicare Part D claims for 56 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.