Arsen Zacharian, MD
NPI 1386802833 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arsen Zacharian, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1386802833).
Provider details
- NPI number
- 1386802833
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- DR0059873 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
51 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 51 | $162 |
Typical Medicare-allowed amounts for these services range $162–$162 (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.
Practice location
Mailing address
Additional practice locations (1)
- 810 W Highway 71Marble Falls, TX 78654-8602Phone: (830) 201-8000
Registry dates
- Enumerated
- 2008-05-30
- Last updated
- 2026-03-23
- Certified
- 2026-03-23
Frequently asked questions
- What is Arsen Zacharian's NPI number?
- Arsen Zacharian's National Provider Identifier (NPI) is 1386802833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arsen Zacharian's specialty?
- Arsen Zacharian is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arsen Zacharian located?
- Arsen Zacharian's practice location on file with NPPES is 4502 Medical Dr, San Antonio, TX 78229-4402.
- What is Arsen Zacharian's phone number?
- The practice phone number listed in the NPPES registry for Arsen Zacharian is (210) 358-4000.
- Does Arsen Zacharian accept Medicare?
- Arsen Zacharian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arsen Zacharian's NPI active?
- Yes — Arsen Zacharian's NPI (1386802833) is active in the NPPES registry as of the last update on 2026-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.