Doctor profile · Federal record

Dr. Ryan Din, MD

Allergy & Immunology (Internal Medicine) Physician (CMS: Allergy/Immunology) · Hospitalist Physician · Internal Medicine Physician · Boston, MA

  • NPI 1679139133
  • Accepts Medicare
  • 2 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
75 Kneeland St Fl 1
Boston, MA 021111901
(617) 804-6767
fax (877) 726-8492
Additional location
330 Brookline Ave, Deaconess 311
Boston, MA 022155400
(617) 667-9600
Additional location
55 Fruit St
Boston, MA 021142621
(617) 726-9700
Mailing address
550 1St Ave
New York, NY 100166402

Credentials & registration

NPPES · NUCC
NPI registered
May 2019 — 7 yrs on file
Profile last updated
February 6, 2026
Year of graduation
2024 — 2 yrs since
Specialty taxonomy
207RA0201X — NUCC code
State license (1)
Massachusetts #1020183

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679139133. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,211
Transactions
36
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, Inc. 11 $272.13
ABBVIE INC. 5 $234.84
GENZYME CORPORATION 2 $152.25
AstraZeneca Pharmaceuticals LP 5 $134.10
Grifols USA, LLC 2 $126.66
Takeda Pharmaceuticals U.S.A., Inc. 3 $79.48
PFIZER INC. 2 $73.75
GlaxoSmithKline, LLC. 3 $62.49
Novartis Pharmaceuticals Corporation 2 $49.70
Salix Pharmaceuticals, a division of Bausch Health US, LLC 1 $25.93

By nature of payment

Food and Beverage
$1,031
Education
$117
Travel and Lodging
$63

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
35
Patients
0
Total drug cost
$57,344
Drug Type Claims Patients Total cost
Dupixent Pen (Dupilumab) Brand 13 0 $47,002
Flovent Hfa (Fluticasone Propionate) Brand 11 0 $4,592
Pulmicort Flexhaler (Budesonide) Brand 11 0 $5,750

Frequently asked questions

Auto-generated from federal data
What is Dr. Ryan Din's medical specialty?
Dr. Ryan Din practices Allergy & Immunology (Internal Medicine) Physician in Boston, MA.
Where does Dr. Ryan Din practice?
Dr. Ryan Din practices at 75 Kneeland St Fl 1, Boston, MA 021111901. Office phone: 6178046767.
What is Dr. Ryan Din's NPI?
Dr. Ryan Din's National Provider Identifier (NPI) is 1679139133, issued by NPPES.
Does Dr. Ryan Din accept Medicare assignment?
Yes. Dr. Ryan Din accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.