Doctor profile · Federal record

Dr. James Fenlon, D.O.

Anesthesiology Physician (CMS: Anesthesiology) · Phoenix, AZ

  • NPI 1750725602
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
645 E Missouri Ave
Phoenix, AZ 850121369
(608) 262-8900

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
December 22, 2021
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Wisconsin #63419

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1750725602. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
142
Distinct HCPCS
6
Medicare allowed
$20,648
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 53 53 $146
00811 Anesthesia for other procedure on large bowel using an endoscope 23 23 $135
00520 Anesthesia for other closed procedure on chest 17 17 $193
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 17 17 $47
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope 16 15 $185
00813 Anesthesia for procedure on small and large bowel using an endoscope 16 16 $174

In context: peer comparison

Among 166 peers in Phoenix Anesthesiology Physician, average services per provider: 34. This provider delivers 4.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$33
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 1 $33.27

By nature of payment

Food and Beverage
$33

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. James Fenlon's medical specialty?
Dr. James Fenlon practices Anesthesiology Physician in Phoenix, AZ.
Where does Dr. James Fenlon practice?
Dr. James Fenlon practices at 645 E Missouri Ave, Phoenix, AZ 850121369. Office phone: 6082628900.
What is Dr. James Fenlon's NPI?
Dr. James Fenlon's National Provider Identifier (NPI) is 1750725602, issued by NPPES.
Does Dr. James Fenlon accept Medicare assignment?
Yes. Dr. James Fenlon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Fenlon commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other closed procedure on chest (HCPCS 00520). Source: CMS Medicare Physician & Other Practitioners file.