Doctor profile · Federal record

Dr. Stephen Flax, M.D.

Dermatology Physician (CMS: Dermatology) · Dermatopathology Physician · Clinical & Laboratory Dermatological Immunology Physician · Procedural Dermatology Physician · Winchester, VA

  • NPI 1376514596
  • Accepts Medicare
  • MIPS 66.4 / 100 · 2023
  • 41 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1514 Amherst St
Winchester, VA 226012803
(540) 667-4499
fax (540) 722-4172

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
August 26, 2019
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Virginia #0101056865
Medicaid (2)
WV #5900003000 · VA #005901570

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376514596. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,682
Distinct HCPCS
10
Medicare allowed
$291,803
HCPCS Description Services Patients Avg allowed
17003 Destruction of precancer skin growth, 2-14 growths 1,072 216 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 587 435 $90
17000 Destruction of precancer skin growth, 1 growth 382 290 $55
11102 Biopsy of related skin growth, first growth 323 260 $96
99203 New patient office or other outpatient visit, 30-44 minutes 288 288 $111
17110 Destruction of skin growth, 1-14 growths 206 179 $113
99214 Established patient office or other outpatient visit, 30-39 minutes 165 119 $126
99204 New patient office or other outpatient visit, 45-59 minutes 88 88 $166
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm 85 69 $294
99212 Established patient office or other outpatient visit, 10-19 minutes 80 76 $56

In context: peer comparison

Among 3 peers in Winchester Dermatology Physician, average services per provider: 202. This provider delivers 18× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Amgen INC. 1 $17.28

By nature of payment

Food and Beverage
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
604
Patients
354
Total drug cost
$16,640
Drug Type Claims Patients Total cost
Triamcinolone Acetonide Generic 120 79 $1,120
Cephalexin Generic 100 89 $637
Doxycycline Hyclate Generic 56 26 $1,592
Methotrexate (Methotrexate Sodium) Brand 56 12 $713
Fluorouracil Generic 47 43 $4,424
Ketoconazole Generic 37 21 $977
Desonide Generic 35 25 $1,904
Clobetasol Propionate Generic 33 30 $2,082
Prednisone Generic 25 0 $191
Mometasone Furoate Generic 23 14 $543

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Flax's medical specialty?
Dr. Stephen Flax practices Dermatology Physician in Winchester, VA.
Where does Dr. Stephen Flax practice?
Dr. Stephen Flax practices at 1514 Amherst St, Winchester, VA 226012803. Office phone: 5406674499.
What is Dr. Stephen Flax's NPI?
Dr. Stephen Flax's National Provider Identifier (NPI) is 1376514596, issued by NPPES.
Does Dr. Stephen Flax accept Medicare assignment?
Yes. Dr. Stephen Flax accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Flax commonly perform?
Top Medicare-reported procedures in 2023: Destruction of precancer skin growth, 2-14 growths (HCPCS 17003); Established patient office or other outpatient visit (HCPCS 99213); Destruction of precancer skin growth, 1 growth (HCPCS 17000). Source: CMS Medicare Physician & Other Practitioners file.