Doctor profile · Federal record

Dr. Muhammad Ali, MD

Critical Care Medicine (Internal Medicine) Physician (CMS: Critical Care (Intensivists)) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Pulmonary Disease Physician · Pulmonary Disease Physician · Flagstaff, AZ

  • NPI 1801264353
  • Accepts Medicare
  • MIPS 88.3 / 100 · 2023
  • 14 yrs in practice
  • Licensed in 3 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1200 N Beaver St
Flagstaff, AZ 860013118
(928) 779-3366
Additional location
759 Chestnut St
Springfield, MA 011991001
(413) 794-0000
Additional location
200 Medical Center Dr
Hazard, KY 417019466
(606) 487-1818
fax (606) 487-8448

Credentials & registration

NPPES · NUCC
NPI registered
September 2015 — 11 yrs on file
Profile last updated
January 20, 2025
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207RC0200X — NUCC code
State licenses (3)
Arizona #72596 · Michigan #4301108352 · Kentucky #54830

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801264353. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
283
Distinct HCPCS
4
Medicare allowed
$39,025
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 134 46 $114
99291 Critical care, first 30-74 minutes 92 30 $205
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 45 21 $76
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $124

In context: peer comparison

Among 2 peers in Flagstaff Critical Care Medicine (Internal Medicine) Physician, average services per provider: 71. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$184
Transactions
9
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, INC. 2 $45.32
Grifols USA, LLC 2 $42.96
Ethicon INC. 1 $30.17
Biogen, INC. 1 $19.39
GlaxoSmithKline, LLC. 1 $15.88
Travere Therapeutics, INC. 1 $15.75
Siemens Medical Solutions USA, INC. 1 $14.15

By nature of payment

Food and Beverage
$184

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Muhammad Ali's medical specialty?
Dr. Muhammad Ali practices Critical Care Medicine (Internal Medicine) Physician in Flagstaff, AZ.
Where does Dr. Muhammad Ali practice?
Dr. Muhammad Ali practices at 1200 N Beaver St, Flagstaff, AZ 860013118. Office phone: 9287793366.
What is Dr. Muhammad Ali's NPI?
Dr. Muhammad Ali's National Provider Identifier (NPI) is 1801264353, issued by NPPES.
Does Dr. Muhammad Ali accept Medicare assignment?
Yes. Dr. Muhammad Ali accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Muhammad Ali commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.