Allan Carl Koenig, M.D.
General Practice Physician · Thornton, CO
Allan Carl Koenig, M.D. is a general practice physician with a practice address in Thornton, Colorado, and NPI 1043248966, issued on Jun 29, 2006. Check the license (Colorado 26131, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Allan Carl Koenig
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 26131 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3959 E 120TH Ave, Thornton, CO 80233
- Phone
- (303) 452-4343
- Enumerated
- Jun 29, 2006
- Record last updated
- Feb 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (303) 452-3055
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 302 in Colorado → Look up another NPI →
Also registered at 3959 E 120TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keith Cook, M. D.Family Medicine Physician1437225786
Verify Allan Carl Koenig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 26131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $21.22
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Allan Carl Koenig among 302 general practice physician records in Colorado
Allan Carl Koenig, M.D. is one of 302 general practice physician records with a practice address in Colorado. 21% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 87% newer
- In a Medicare fileYes · 21% of these records are
- In the CMS Doctors and Clinicians fileNo · 10% of these records are
- Record last updated2008 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Colorado
There are 302 general practice physician records in Colorado.
All 302 in Colorado → Every provider in Thornton → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Jenel Deane, PHARMDDenver, CO 802341740310580
- Jennifer HornWestminster, CO 802341760519706
- Grace Kim, DONorthglenn, CO 802341205397346
- Sara KlockarsWestminster, CO 802341396872339
- Alfred Lyman, PHARMDWestminster, CO 802341083741052
- Matthew Parker, MDWestminster, CO 802341528529047
- Stephen Axelrod, M.D.Denver, CO 802311104212927
- Cathy Baldwin-FloydDenver, CO 802311437275054
Common questions
What is Allan Carl Koenig, M.D.'s NPI number?
Allan Carl Koenig, M.D.'s National Provider Identifier (NPI) is 1043248966, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allan Carl Koenig, M.D. located?
The NPPES record lists a practice address at 3959 E 120TH Ave, Thornton, CO, 80233. Phone: (303) 452-4343. Providers update this record themselves, so call before visiting.
How can I verify Allan Carl Koenig, M.D.'s license?
NPPES lists Colorado license number 26131, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.