John E. Oconnor, M.D.
Family Medicine Physician · Lakewood, CO
John E. Oconnor, M.D. is a family medicine physician with a practice address in Lakewood, Colorado, and NPI 1417928003, issued on Jan 31, 2006. Check the license (Colorado 34077, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John E. Oconnor
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 34077 CO
Self-reported in NPPES; status is on the state search - Practice location
- 205 S Garrison St, Lakewood, CO 80226
- Phone
- (303) 237-2779
- Enumerated
- Jan 31, 2006
- Record last updated
- Dec 10, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (303) 237-4428
- Medicaid ID
- 01340777 CO
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 205 S Garrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Martin Thumim, D.O.Family Medicine Physician1669457529
- Brent Virts, DDSDentist1770708133
- Erich Zimmermann, DDSGeneral Practice Dentistry1376562777
Verify John E. Oconnor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 34077Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John E. Oconnor among 3,563 family medicine physician records in Colorado
John E. Oconnor, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 56% newer
- In a Medicare fileNo · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2009 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 family medicine physician records list a practice address in Lakewood
They are 86 of the 4,944 NPPES records with a practice address in Lakewood, and 3,563 family medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,563 in Colorado → Every provider in Lakewood → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jeffrey Amundson, M.D.Lakewood, CO 802261477524056
- Kjell Benson, MDLakewood, CO 802261972541845
- Richard Brundige, MDLakewood, CO 802261407945595
- Lauren Dealleaume, MDLakewood, CO 802261770504607
- Mark Foster, D.O.Lakewood, CO 802261811086705
- Tracy Hofeditz, MDLakewood, CO 802261194722561
- Frank Knapp, M.D.Lakewood, CO 802261154345429
- Jennifer Kubista, MDLakewood, CO 802261518915727
Common questions
What is John E. Oconnor, M.D.'s NPI number?
John E. Oconnor, M.D.'s National Provider Identifier (NPI) is 1417928003, issued on Jan 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John E. Oconnor, M.D. located?
The NPPES record lists a practice address at 205 S Garrison St, Lakewood, CO, 80226. Phone: (303) 237-2779. Providers update this record themselves, so call before visiting.
How can I verify John E. Oconnor, M.D.'s license?
NPPES lists Colorado license number 34077, 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. 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.