Doctor profile · Federal record
Dr. Michael Hattwick, MD
Internal Medicine Physician (CMS: Internal Medicine) · Fairfax, VA
- NPI 1356496988
- Accepts Medicare
- 58 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8301 Arlington Blvd, Suite 405
Fairfax, VA 220312902
(703) 698-9000
fax (703) 876-8911
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- November 2, 2011
- Year of graduation
- 1968 — 58 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Virginia #0101028343
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356496988. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
50
Distinct HCPCS
1
Medicare allowed
$4,433
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 50 | 14 | $89 |
In context: peer comparison
Among 27 peers in Fairfax Internal Medicine Physician, average services per provider: 98. This provider delivers 0.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
44
Patients
0
Total drug cost
$1,134
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Synthroid (Levothyroxine Sodium) | Brand | 18 | 0 | $720 |
| Levothyroxine Sodium | Generic | 14 | 0 | $229 |
| Amlodipine Besylate | Generic | 12 | 0 | $184 |
Frequently asked questions
What is Dr. Michael Hattwick's medical specialty?
Dr. Michael Hattwick practices Internal Medicine Physician in Fairfax, VA.
Where does Dr. Michael Hattwick practice?
Dr. Michael Hattwick practices at 8301 Arlington Blvd, Fairfax, VA 220312902. Office phone: 7036989000.
What is Dr. Michael Hattwick's NPI?
Dr. Michael Hattwick's National Provider Identifier (NPI) is 1356496988, issued by NPPES.
Does Dr. Michael Hattwick accept Medicare assignment?
Yes. Dr. Michael Hattwick accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Hattwick commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.