William J. Milliken, MD
Preventive Medicine/Occupational Environmental Medicine Physician · Windsor, CO
William J. Milliken, MD is a preventive medicine/occupational environmental medicine physician with a practice address in Windsor, Colorado, and NPI 1578552360, issued on Oct 14, 2005. Check the license (Colorado 39695, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William J. Milliken
- Credential
- MD
- Primary taxonomy
- Preventive Medicine/Occupational Environmental Medicine Physician 2083P0500X
- License number
- 39695 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8010 S County Road 5, Windsor, CO 80528
- Phone
- (970) 377-1300
- Enumerated
- Oct 14, 2005
- Record last updated
- Oct 9, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (970) 377-1314
- Entity
- Type 1 · individual
8 nearest preventive medicine/occupational environmental medicine physician records → All 42 in Colorado → Look up another NPI →
Also registered at 8010 S County Road 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angelica Munger, MDRehabilitation Practitioner1457465999
Verify William J. Milliken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 39695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William J. Milliken among 42 preventive medicine/occupational environmental medicine physician records in Colorado
William J. Milliken, MD is one of 42 preventive medicine/occupational environmental medicine physician records with a practice address in Colorado. 14% 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileNo · 5% of these records are
- Record last updated2009 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0500X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Preventive Medicine/Occupational Environmental Medicine Physician providers in Colorado
There are 42 preventive medicine/occupational environmental medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 42 in Colorado → Every provider in Windsor → Preventive Medicine/Occupational Environmental Medicine Physician nationwide →
The 8 preventive medicine/occupational environmental medicine physician records with the nearest ZIP codes
- Bruce Belleville, M.D.Fort Collins, CO 805261073670873
- Brian Thompson, M.D.Fort Collins, CO 805241205980463
- Marc-Andre Chimonas, M.D.Loveland, CO 805381538238704
- Rachel Fischer, MDLoveland, CO 805381811127780
- Patrick Quigley, M.D., M.S.Loveland, CO 805381780724625
- John Mars, MDLongmont, CO 805011316077506
- James Rafferty, DOGreeley, CO 806311821160466
- Mark Frank, M.D.Boulder, CO 803051952422446
Common questions
What is William J. Milliken, MD's NPI number?
William J. Milliken, MD's National Provider Identifier (NPI) is 1578552360, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William J. Milliken, MD located?
The NPPES record lists a practice address at 8010 S County Road 5, Windsor, CO, 80528. Phone: (970) 377-1300. Providers update this record themselves, so call before visiting.
How can I verify William J. Milliken, MD's license?
NPPES lists Colorado license number 39695, 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.