Ryan Din, MD
Allergy & Immunology (Internal Medicine) Physician · Boston, MA
Ryan Din, MD is an allergy & immunology (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1679139133, issued on May 10, 2019. Check the license (Massachusetts 1020183, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ryan Din
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- 1020183 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Kneeland St FL 1, Boston, MA 02111
- Phone
- (617) 804-6767
- Enumerated
- May 10, 2019
- Record last updated
- Feb 6, 2026
- Fax
- (877) 726-8492
- Medicare enrollment
- Enrolled (PECOS I20240806001192); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2024
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 25 in Massachusetts → Look up another NPI →
Verify Ryan Din in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1020183Check 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 allergy & immunology (internal medicine) physician in 2024
146 Medicare Part D claims for 27 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of claims.
Most prescribed
- Spiriva Respimat19 claims
- Montelukast Sodium16 claims
- Albuterol Sulfate Hfa13 claims
- Dupixent Pen12 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: $1,211.33
36 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 321 providers of this specialty with any payment received $7,456.30 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 4 group practices
- Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISNew Bedford, MA
- Boston Food Allergy Center LLC BI NetworkBoston, MA
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Din among 25 allergy & immunology (internal medicine) physician records in Massachusetts
Ryan Din, MD is one of 25 allergy & immunology (internal medicine) physician records with a practice address in Massachusetts. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 4% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 96% of these records are
- Graduated2024 · median 2012 among the 24 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X 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 (Internal Medicine) Physician providers in Massachusetts
There are 25 allergy & immunology (internal medicine) physician records in Massachusetts.
All 25 in Massachusetts → Every provider in Boston → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Margarita Garriga, MDBoston, MA 021091457341927
- Sara Barmettler, MDBoston, MA 021141689949935
- Amy Levin, MDBoston, MA 021141972940138
- Morris Ling, M.D.Boston, MA 021141851588693
- Lacey Robinson, MDBoston, MA 021141174966295
- Anna Wolfson, M.D.Boston, MA 021141649581463
- Javier Cabrera-Perez, MD, PHDBoston, MA 021151124523048
- George Huang, MDBoston, MA 021151861920845
Common questions
What is Ryan Din, MD's NPI number?
Ryan Din, MD's National Provider Identifier (NPI) is 1679139133, issued on May 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Din, MD located?
The NPPES record lists a practice address at 75 Kneeland St FL 1, Boston, MA, 02111. Phone: (617) 804-6767. Providers update this record themselves, so call before visiting.
How can I verify Ryan Din, MD's license?
NPPES lists Massachusetts license number 1020183, 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 Ryan Din, MD prescribe under Medicare Part D?
In 2024, Ryan Din, MD had 146 Medicare Part D claims for 27 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.