Stephen Rex, MD
NPI 1861495871 · Family Medicine Physician · Alexandria, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Rex, MD is a Family Medicine Physician provider in Alexandria, VA (NPI 1861495871).
Provider details
- NPI number
- 1861495871
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101051876 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,560 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 372 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 368 | $99 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 335 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 156 | $143 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 78 | $98 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 146 | 44 |
| Levothyroxine Sodium | 73 | 18 |
| Omeprazole | 50 | 12 |
| Losartan Potassium | 48 | 14 |
| Sertraline Hcl | 43 | 12 |
| Gabapentin | 35 | 12 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-23
- Last updated
- 2015-10-12
Frequently asked questions
- What is Stephen Rex's NPI number?
- Stephen Rex's National Provider Identifier (NPI) is 1861495871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Rex's specialty?
- Stephen Rex is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Rex located?
- Stephen Rex's practice location on file with NPPES is 8101 Hinson Farm Rd, Alexandria, VA 22306-3410.
- What is Stephen Rex's phone number?
- The practice phone number listed in the NPPES registry for Stephen Rex is (703) 799-9695.
- Does Stephen Rex accept Medicare?
- Stephen Rex is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Rex's NPI active?
- Yes — Stephen Rex's NPI (1861495871) is active in the NPPES registry as of the last update on 2015-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.