Doctor profile · Federal record

Dr. Jeffrey King, M.D.

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

  • NPI 1194901942
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1400 Jackson St
Denver, CO 802062761
(303) 388-4461
fax (303) 270-2206

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
February 23, 2021
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Colorado #53722 · Massachusetts #AH 1918018-4317
Medicaid
CO #53409272

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194901942. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
505
Distinct HCPCS
9
Medicare allowed
$65,130
HCPCS Description Services Patients Avg allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 110 107 $76
99214 Established patient office or other outpatient visit, 30-39 minutes 84 74 $97
99205 New patient office or other outpatient visit, 60-74 minutes 67 67 $179
99204 New patient office or other outpatient visit, 45-59 minutes 59 59 $135
99215 Established patient office or other outpatient visit, 40-54 minutes 53 50 $145
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 44 43 $254
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 37 36 $135
45380 Biopsy of large bowel using a flexible endoscope 36 36 $93
99214 Established patient office or other outpatient visit, 30-39 minutes 15 14 $99

In context: peer comparison

Among 21 peers in Denver Gastroenterology Physician, average services per provider: 105. This provider delivers 4.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Regeneron Pharmaceuticals, INC. 1 $24.81

By nature of payment

Food and Beverage
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
819
Patients
206
Total drug cost
$247,840
Drug Type Claims Patients Total cost
Omeprazole Generic 197 49 $3,562
Famotidine Generic 122 39 $1,902
Baclofen Generic 116 37 $2,613
Bethanechol Chloride Generic 94 26 $8,735
Pantoprazole Sodium Generic 57 20 $1,356
Lactated Ringers (Ringer's Solution,Lactated) Brand 50 0 $1,508
Ondansetron Odt (Ondansetron) Brand 42 0 $1,532
Linzess (Linaclotide) Brand 28 0 $34,236
Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) Brand 22 0 $1,416
Doxycycline Hyclate Generic 19 17 $278

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jeffrey King's medical specialty?
Dr. Jeffrey King practices Gastroenterology Physician in Denver, CO.
Where does Dr. Jeffrey King practice?
Dr. Jeffrey King practices at 1400 Jackson St, Denver, CO 802062761. Office phone: 3033884461.
What is Dr. Jeffrey King's NPI?
Dr. Jeffrey King's National Provider Identifier (NPI) is 1194901942, issued by NPPES.
Does Dr. Jeffrey King accept Medicare assignment?
Yes. Dr. Jeffrey King accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jeffrey King commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.