Doctor profile · Federal record

Dr. Spencer Peterson, M.D.

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Denver, CO

  • NPI 1740426048
  • Accepts Medicare
  • 14 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
835 E 18Th Ave Ste 110
Denver, CO 80218
(303) 825-4646
fax (303) 825-3215

Credentials & registration

NPPES · NUCC
NPI registered
December 2008 — 18 yrs on file
Profile last updated
August 14, 2018
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Colorado #55443

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740426048. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
321
Distinct HCPCS
2
Medicare allowed
$53,521
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 308 293 $168
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 13 13 $127

In context: peer comparison

Among 64 peers in this city , average services per provider: 73. This provider delivers 4.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$308
Transactions
13
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 7 $195.55
Merck Sharp & Dohme LLC 3 $55.61
Janssen Pharmaceuticals, Inc 2 $31.91
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 1 $25.08

By nature of payment

Food and Beverage
$308

Frequently asked questions

Auto-generated from federal data
What is Dr. Spencer Peterson's medical specialty?
Dr. Spencer Peterson practices Hospitalist Physician in Denver, CO.
Where does Dr. Spencer Peterson practice?
Dr. Spencer Peterson practices at 835 E 18Th Ave Ste 110, Denver, CO 80218. Office phone: 3038254646.
What is Dr. Spencer Peterson's NPI?
Dr. Spencer Peterson's National Provider Identifier (NPI) is 1740426048, issued by NPPES.
Does Dr. Spencer Peterson accept Medicare assignment?
Yes. Dr. Spencer Peterson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Spencer Peterson 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.