Doctor profile · Federal record

Dr. Jacob Walker, MD

Geriatric Medicine (Internal Medicine) Physician (CMS: Geriatric Medicine) · Geriatric Medicine (Internal Medicine) Physician · Aurora, CO

  • NPI 1255794657
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1635 Aurora CT
Aurora, CO 800452541
(720) 848-0000
Mailing address
Po Box 110429
Aurora, CO 800420429

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
July 27, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RG0300X — NUCC code
State licenses (2)
Colorado #DR.0068294 · Illinois #036148512

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255794657. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
540
Distinct HCPCS
8
Medicare allowed
$62,586
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 183 107 $127
99215 Established patient office or other outpatient visit, 40-54 minutes 108 92 $106
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 82 31 $80
99205 New patient office or other outpatient visit, 60-74 minutes 69 69 $183
99214 Established patient office or other outpatient visit, 30-39 minutes 32 31 $86
99214 Established patient office or other outpatient visit, 30-39 minutes 31 29 $81
99238 Hospital discharge day management, 30 minutes or less 23 23 $82
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $131

In context: peer comparison

Among 7 peers in this city , average services per provider: 63. This provider delivers 8.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Organon Llc 1 $22.81

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,180
Patients
389
Total drug cost
$289,549
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 156 53 $1,929
Losartan Potassium Generic 114 38 $1,694
Levothyroxine Sodium Generic 111 34 $1,760
Tamsulosin Hcl Generic 92 29 $1,703
Amlodipine Besylate Generic 91 39 $898
Metoprolol Succinate Generic 78 30 $1,831
Eliquis (Apixaban) Brand 77 24 $65,617
Gabapentin Generic 73 20 $1,778
Furosemide Generic 61 26 $402
Lisinopril Generic 60 23 $833

Frequently asked questions

Auto-generated from federal data
What is Dr. Jacob Walker's medical specialty?
Dr. Jacob Walker practices Geriatric Medicine (Internal Medicine) Physician in Aurora, CO.
Where does Dr. Jacob Walker practice?
Dr. Jacob Walker practices at 1635 Aurora CT, Aurora, CO 800452541. Office phone: 7208480000.
What is Dr. Jacob Walker's NPI?
Dr. Jacob Walker's National Provider Identifier (NPI) is 1255794657, issued by NPPES.
Does Dr. Jacob Walker accept Medicare assignment?
Yes. Dr. Jacob Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jacob Walker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.