Ajay Zachariah, MD
NPI 1427491869 · Family Medicine Physician · Austin, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ajay Zachariah, MD is a Family Medicine Physician provider in Austin, TX (NPI 1427491869).
Provider details
- NPI number
- 1427491869
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- R3777 (TX)
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
13 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
227 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 | 148 | $123 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $90 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 19 | $10 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $180 |
Typical Medicare-allowed amounts for these services range $10–$180 (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 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 194 | 71 |
| Amlodipine Besylate | 147 | 49 |
| Levothyroxine Sodium | 143 | 45 |
| Lisinopril | 123 | 44 |
| Tirzepatidebrand: Mounjaro | 99 | 24 |
| Losartan Potassium | 94 | 33 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-16
- Last updated
- 2023-08-15
- Certified
- 2023-08-15
Frequently asked questions
- What is Ajay Zachariah's NPI number?
- Ajay Zachariah's National Provider Identifier (NPI) is 1427491869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ajay Zachariah's specialty?
- Ajay Zachariah is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ajay Zachariah located?
- Ajay Zachariah's practice location on file with NPPES is 500 N Capital of Texas Hwy Bldg 6-125, Austin, TX 78746-3329.
- What is Ajay Zachariah's phone number?
- The practice phone number listed in the NPPES registry for Ajay Zachariah is (855) 481-8375.
- Does Ajay Zachariah accept Medicare?
- Ajay Zachariah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ajay Zachariah's NPI active?
- Yes — Ajay Zachariah's NPI (1427491869) is active in the NPPES registry as of the last update on 2023-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.