Doctor profile · Federal record
Dr. Lawrence an, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Ann Arbor, MI
- NPI 1003850611
- Accepts Medicare
- 35 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- December 19, 2019
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Michigan #4301057790 · Minnesota #40857
- Medicaid (2)
- MN #952824500 · IA #0176446
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003850611. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
58
Distinct HCPCS
2
Medicare allowed
$4,725
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 32 | 31 | $67 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 26 | 21 | $99 |
In context: peer comparison
Among 135 peers in this city , average services per provider: 77. This provider delivers 0.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
20
Patients
0
Total drug cost
$4,308
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gentamicin Sulfate | Generic | 20 | 0 | $4,308 |
Hospital affiliations
Frequently asked questions
What is Dr. Lawrence an's medical specialty?
Dr. Lawrence an practices Internal Medicine Physician in Ann Arbor, MI.
Where does Dr. Lawrence an practice?
Dr. Lawrence an practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Lawrence an's NPI?
Dr. Lawrence an's National Provider Identifier (NPI) is 1003850611, issued by NPPES.
Does Dr. Lawrence an accept Medicare assignment?
Yes. Dr. Lawrence an accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lawrence an commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.