Jeffrey S. Cook, MD
Family Medicine Physician · Greeley, CO
Jeffrey S. Cook, MD is a family medicine physician with a practice address in Greeley, Colorado, and NPI 1992781892, issued on Dec 22, 2005. Check the license (Colorado 42007, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jeffrey S. Cook
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 42007 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1600 23RD Ave, Greeley, CO 80634
- Phone
- (970) 356-2424
- Enumerated
- Dec 22, 2005
- Record last updated
- Sep 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (970) 346-2771
- Medicaid ID
- 55938540 CO
- Medicare enrollment
- Enrolled (PECOS I20050906000910); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1600 23RD Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jeffrey S. Cook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 42007Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
173 Medicare Part D claims for 76 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium13 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
- North Colorado Family MedicineGreeley, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey S. Cook among 3,563 family medicine physician records in Colorado
Jeffrey S. Cook, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2002 · 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.
All 3,563 in Colorado → Every provider in Greeley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jacqueline Bearden, M.D.Greeley, CO 806341013912930
- Richard Budensiek, D.O.Greeley, CO 806341518962448
- Herbert Fahrenholtz, MDGreeley, CO 806341811986169
- Anthony Fink, MDGreeley, CO 806341235116120
- Stacey Garber, MDGreeley, CO 806341558350892
- Wayne Jeffers, MDGreeley, CO 806341952390114
- Brian Kingston, MDGreeley, CO 806341356345391
- Janis McCall, M.D.Greeley, CO 806341457356388
Common questions
What is Jeffrey S. Cook, MD's NPI number?
Jeffrey S. Cook, MD's National Provider Identifier (NPI) is 1992781892, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey S. Cook, MD located?
The NPPES record lists a practice address at 1600 23RD Ave, Greeley, CO, 80634. Phone: (970) 356-2424. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey S. Cook, MD's license?
NPPES lists Colorado license number 42007, 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 Jeffrey S. Cook, MD prescribe under Medicare Part D?
In 2024, Jeffrey S. Cook, MD had 173 Medicare Part D claims for 76 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.