Doctor profile · Federal record

Dr. Lena Fan, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Internal Medicine Physician · New York, NY

  • NPI 1831546282
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
10 Union Sq E
New York, NY 100033314
(212) 420-4070
Additional location
650 W 168Th St # Bb20-07
New York, NY 100323742
(212) 305-6472
fax (212) 304-7474
Mailing address
150 E 42Nd St Fl 9
New York, NY 100175699

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
June 10, 2021
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State licenses (3)
New York #297576 · Rhode Island #LP03657 · New York #297576-1

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831546282. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
270
Distinct HCPCS
4
Medicare allowed
$37,956
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 191 114 $149
99205 New patient office or other outpatient visit, 60-74 minutes 34 34 $190
99451 Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes 24 24 $37
99214 Established patient office or other outpatient visit, 30-39 minutes 21 18 $102

In context: peer comparison

Among 92 peers in this city , average services per provider: 220. This provider delivers 1.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$250
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 1 $125.00
Lilly USA, LLC 1 $125.00

By nature of payment

Food and Beverage
$250

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,352
Patients
347
Total drug cost
$917,141
Drug Type Claims Patients Total cost
Jardiance (Empagliflozin) Brand 173 51 $248,708
Metformin Hcl Er (Metformin Hcl) Brand 172 54 $3,728
Levothyroxine Sodium Generic 149 40 $2,678
Ozempic (Semaglutide) Brand 149 30 $205,834
Trulicity (Dulaglutide) Brand 129 31 $216,522
Alendronate Sodium Generic 118 35 $1,127
Metformin Hcl Generic 70 32 $591
Novolog Flexpen (Insulin Aspart) Brand 66 12 $58,429
Synthroid (Levothyroxine Sodium) Brand 61 17 $7,408
Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) Brand 52 16 $24,604

Frequently asked questions

Auto-generated from federal data
What is Dr. Lena Fan's medical specialty?
Dr. Lena Fan practices Endocrinology, Diabetes & Metabolism Physician in New York, NY.
Where does Dr. Lena Fan practice?
Dr. Lena Fan practices at 10 Union Sq E, New York, NY 100033314. Office phone: 2124204070.
What is Dr. Lena Fan's NPI?
Dr. Lena Fan's National Provider Identifier (NPI) is 1831546282, issued by NPPES.
Does Dr. Lena Fan accept Medicare assignment?
Yes. Dr. Lena Fan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lena Fan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205); Telephone, internet, or electronic health record assessment and management with written report by consulting physician (HCPCS 99451). Source: CMS Medicare Physician & Other Practitioners file.