M. Alexander, M.D.
NPI 1629127329 · Internal Medicine Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
M. Alexander, M.D. is a Internal Medicine Physician provider in Falls Church, VA (NPI 1629127329).
Provider details
- NPI number
- 1629127329
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 0101232434 (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
19 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
40 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $101 |
| Administration of Influenza Virus VaccineG0008 | 15 | $36 |
Typical Medicare-allowed amounts for these services range $36–$101 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,025 | 324 |
| Losartan Potassium | 420 | 129 |
| Lisinopril | 328 | 93 |
| Levothyroxine Sodium | 315 | 89 |
| Amlodipine Besylate | 299 | 97 |
| Hydrochlorothiazide | 191 | 58 |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-10
- Last updated
- 2022-11-14
- Certified
- 2022-11-14
Frequently asked questions
- What is M. Alexander's NPI number?
- M. Alexander's National Provider Identifier (NPI) is 1629127329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is M. Alexander's specialty?
- M. Alexander is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is M. Alexander located?
- M. Alexander's practice location on file with NPPES is 201 North Washington Street, Falls Church, VA 22046.
- What is M. Alexander's phone number?
- The practice phone number listed in the NPPES registry for M. Alexander is (703) 237-4000.
- Does M. Alexander accept Medicare?
- M. Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is M. Alexander's NPI active?
- Yes — M. Alexander's NPI (1629127329) is active in the NPPES registry as of the last update on 2022-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.