Doctor profile · Federal record

Dr. Sam Alnajjar, MD

Critical Care Medicine (Internal Medicine) Physician (CMS: Critical Care (Intensivists)) · Critical Care Medicine (Internal Medicine) Physician · Tucson, AZ

  • NPI 1972612158
  • Accepts Medicare
  • MIPS 89.3 / 100 · 2023
  • 26 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
6200 N la Cholla Blvd
Tucson, AZ 857413529
(480) 861-1415
fax (480) 393-7542
Additional location
6525 N Lost Dutchman Dr
Paradise Valley, AZ 852534103
(248) 767-1975
fax (949) 437-3271
Additional location
1122 Ne 13Th St
Oklahoma City, OK 731171039
(405) 271-4351
fax (405) 271-8695
Mailing address
Po Box 32770
Phoenix, AZ 850642770

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
July 17, 2023
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207RC0200X — NUCC code
State licenses (2)
Arizona #41176 · Oklahoma #37866

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972612158. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,179
Distinct HCPCS
10
Medicare allowed
$351,935
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 1,271 416 $205
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 410 250 $115
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 261 165 $77
99292 Critical care, each additional 30 minutes 67 39 $104
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 37 37 $168
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older) 26 23 $81
31500 Emergent insertion of breathing tube into windpipe using an endoscope 24 24 $136
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 24 22 $48
36800 Insertion of tube connecting vein to vein for hemodialysis 17 17 $111
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 17 17 $126

In context: peer comparison

Among 7 peers in Tucson Critical Care Medicine (Internal Medicine) Physician, average services per provider: 82. This provider delivers 27× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sam Alnajjar's medical specialty?
Dr. Sam Alnajjar practices Critical Care Medicine (Internal Medicine) Physician in Tucson, AZ.
Where does Dr. Sam Alnajjar practice?
Dr. Sam Alnajjar practices at 6200 N la Cholla Blvd, Tucson, AZ 857413529. Office phone: 4808611415.
What is Dr. Sam Alnajjar's NPI?
Dr. Sam Alnajjar's National Provider Identifier (NPI) is 1972612158, issued by NPPES.
Does Dr. Sam Alnajjar accept Medicare assignment?
Yes. Dr. Sam Alnajjar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sam Alnajjar commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.