NPPES file of Aug 9, 2026

William J. Oligmueller, MD

Family Medicine Physician · Greeley, CO

William J. Oligmueller, MD is a family medicine physician with a practice address in Greeley, Colorado, and NPI 1134107865, issued on Jan 3, 2006. Check the license (Colorado 30046, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134107865
Name
William J. Oligmueller
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
30046 CO
Self-reported in NPPES; status is on the state search
Practice location
5881 W 16TH St, Greeley, CO 80634
Phone
(970) 313-2700
Enumerated
Jan 3, 2006
Record last updated
Jul 2, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(970) 313-2727
Medicaid ID
01300466 CO
Medicare enrollment
Enrolled (PECOS I20100104000522); accepts Medicare assignment
Medical or professional school
University Of New Mexico School Of Medicine, 1987
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5881 W 16TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael Bates, PTPhysical Therapist1275641953
  2. Mary Blattner, MDDermatology Physician1205813193
  3. Mary Brinkmann, MPTPhysical Therapist1114100807
  4. Dustin Carter, MPTPhysical Therapist1174641427
  5. Kevin Clay, M.D.Urology Physician1467604637
  6. Lesley Deen, PA-CPhysician Assistant1144291618

Verify William J. Oligmueller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 30046
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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84% more Medicare Part D claims than the average family medicine physician in 2024

6,531 Medicare Part D claims for 669 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 171 claims were for opioids.

  1. William Oligmueller6,531
  2. Specialty average3,544

Most prescribed

  1. Lisinopril453 claims
  2. Atorvastatin Calcium434 claims
  3. Simvastatin295 claims
  4. Metformin Hcl286 claims
  5. Losartan Potassium261 claims
  6. Tamsulosin Hcl237 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Poudre Valley Medical Group LLCCastle Rock, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William J. Oligmueller among 3,563 family medicine physician records in Colorado

William J. Oligmueller, MD 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. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 56% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1987 · median 2008 among the 2,077 with a school on file
  • Record last updated2013 · 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).

121 family medicine physician records list a practice address in Greeley

They are 121 of the 3,518 NPPES records with a practice address in Greeley, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jacqueline Bearden, M.D.Greeley, CO 806341013912930
  2. Richard Budensiek, D.O.Greeley, CO 806341518962448
  3. Jeffrey Cook, MDGreeley, CO 806341992781892
  4. Herbert Fahrenholtz, MDGreeley, CO 806341811986169
  5. Anthony Fink, MDGreeley, CO 806341235116120
  6. Stacey Garber, MDGreeley, CO 806341558350892
  7. Wayne Jeffers, MDGreeley, CO 806341952390114
  8. Brian Kingston, MDGreeley, CO 806341356345391

Common questions

What is William J. Oligmueller, MD's NPI number?

William J. Oligmueller, MD's National Provider Identifier (NPI) is 1134107865, issued on Jan 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William J. Oligmueller, MD located?

The NPPES record lists a practice address at 5881 W 16TH St, Greeley, CO, 80634. Phone: (970) 313-2700. Providers update this record themselves, so call before visiting.

How can I verify William J. Oligmueller, MD's license?

NPPES lists Colorado license number 30046, 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.

How much does William J. Oligmueller, MD prescribe under Medicare Part D?

In 2024, William J. Oligmueller, MD had 6,531 Medicare Part D claims for 669 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.