Adi Klein, MD
NPI 1912929423 · Hospitalist Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adi Klein, MD is a Hospitalist Physician provider in San Antonio, TX (NPI 1912929423).
Provider details
- NPI number
- 1912929423
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A71260 (CA)
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
19 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
288 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 | 288 | $164 |
Typical Medicare-allowed amounts for these services range $164–$164 (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)
- 2827 Babcock RdHospitalist OfficeSan Antonio, TX 78229-4813Phone: (210) 705-6686Fax: (210) 705-6457
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2021-07-30
- Certified
- 2021-07-30
Frequently asked questions
- What is Adi Klein's NPI number?
- Adi Klein's National Provider Identifier (NPI) is 1912929423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adi Klein's specialty?
- Adi Klein is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Adi Klein located?
- Adi Klein's practice location on file with NPPES is 3551 Roger Brooke Dr, San Antonio, TX 78234-4504.
- What is Adi Klein's phone number?
- The practice phone number listed in the NPPES registry for Adi Klein is (210) 916-5586.
- Does Adi Klein accept Medicare?
- Adi Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adi Klein's NPI active?
- Yes — Adi Klein's NPI (1912929423) is active in the NPPES registry as of the last update on 2021-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.