Doctor profile · Federal record

Dr. Adi Klein, MD

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Hospitalist Physician · San Antonio, TX

  • NPI 1912929423
  • Accepts Medicare
  • 28 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3551 Roger Brooke Dr
San Antonio, TX 782344504
(210) 916-5586
fax (210) 916-5102
Additional location
2827 Babcock RD, Hospitalist Office
San Antonio, TX 782294813
(210) 705-6686
fax (210) 705-6457
Mailing address
21826 Roan Blf
San Antonio, TX 782592739

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 30, 2021
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (3)
Texas #N6427 · California #A71260 · Kentucky #48721
Medicaid
TX #214064201

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912929423. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
361
Distinct HCPCS
2
Medicare allowed
$59,130
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 336 331 $167
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 25 25 $125

In context: peer comparison

Among 51 peers in San Antonio Hospitalist Physician, average services per provider: 87. This provider delivers 4.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adi Klein's medical specialty?
Dr. Adi Klein practices Hospitalist Physician in San Antonio, TX.
Where does Dr. Adi Klein practice?
Dr. Adi Klein practices at 3551 Roger Brooke Dr, San Antonio, TX 782344504. Office phone: 2109165586.
What is Dr. Adi Klein's NPI?
Dr. Adi Klein's National Provider Identifier (NPI) is 1912929423, issued by NPPES.
Does Dr. Adi Klein accept Medicare assignment?
Yes. Dr. Adi Klein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adi Klein commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.