Doctor profile · Federal record
Dr. John Maddox, M.D.
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Fairfax, VA
- NPI 1467546648
- Accepts Medicare
- MIPS 52.2 / 100 · 2023
- 49 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
3025 Hamaker CT Ste 200
Fairfax, VA 220312237
(703) 698-8060
fax (703) 876-4691 - Additional location
-
13135 Route 50 Ste 200
Fairfax, VA 220331907
fax (703) 620-1364 - Mailing address
-
8110 Maple Lawn Blvd Ste 235
Fulton, MD 207592694
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- November 28, 2023
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- Virginia #0101037033
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1467546648. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
173
Distinct HCPCS
4
Medicare allowed
$7,166
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 101 | 101 | $46 | |
81002 |
Urinalysis, manual test | 29 | 29 | $3 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 27 | 27 | $51 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 16 | 13 | $66 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 51. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$76
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US Inc | 3 | $75.76 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
88
Patients
11
Total drug cost
$13,172
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 32 | 11 | $1,160 |
| Premarin (Estrogens, Conjugated) | Brand | 17 | 0 | $10,202 |
| Fyavolv (Norethindrone Ac-Eth Estradiol) | Brand | 16 | 0 | $1,690 |
| Diazepam | Generic | 12 | 0 | $33 |
| Alendronate Sodium | Generic | 11 | 0 | $87 |
Frequently asked questions
What is Dr. John Maddox's medical specialty?
Dr. John Maddox practices Obstetrics & Gynecology Physician in Fairfax, VA.
Where does Dr. John Maddox practice?
Dr. John Maddox practices at 3025 Hamaker CT Ste 200, Fairfax, VA 220312237. Office phone: 7036988060.
What is Dr. John Maddox's NPI?
Dr. John Maddox's National Provider Identifier (NPI) is 1467546648, issued by NPPES.
Does Dr. John Maddox accept Medicare assignment?
Yes. Dr. John Maddox accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Maddox commonly perform?
Top Medicare-reported procedures in 2023: Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Urinalysis, manual test (HCPCS 81002); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091). Source: CMS Medicare Physician & Other Practitioners file.