Karen M. Greenwood, MD
Family Medicine Physician · Littleton, CO
Karen M. Greenwood, MD is a family medicine physician with a practice address in Littleton, Colorado, and NPI 1275501322, issued on Mar 14, 2006. Check the license (Colorado 047289, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen M. Greenwood
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 047289 CO
01050847A IN
Self-reported in NPPES; status is on the state search - Practice location
- 5257 S Wadsworth Blvd, Littleton, CO 80123
- Phone
- (303) 338-4545
- Enumerated
- Mar 14, 2006
- Record last updated
- May 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid IDs
- 35706767 CO
200233680 IN - Medicare enrollment
- Enrolled (PECOS I20090309000088); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 5257 S Wadsworth Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy BilyeuRegistered Nurse1447387469
- Christine Blanco, RNInternal Medicine Physician1659414746
- Camilla BordenLicensed Practical Nurse1639375025
Verify Karen M. Greenwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 047289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family medicine physician in 2024
7,382 Medicare Part D claims for 711 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. 500 claims were for opioids.
Most prescribed
- Levothyroxine Sodium428 claims
- Atorvastatin Calcium411 claims
- Lisinopril302 claims
- Rosuvastatin Calcium289 claims
- Omeprazole259 claims
- Simvastatin240 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
- Colorado Permanente Medical Group PCLittleton, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen M. Greenwood among 3,563 family medicine physician records in Colorado
Karen M. Greenwood, 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
- Graduated1996 · median 2008 among the 2,077 with a school on file
- Record last updated2021 · 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).
95 family medicine physician records list a practice address in Littleton
They are 95 of the 3,918 NPPES records with a practice address in Littleton, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Littleton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sarah Bilthuis, M.D.Littleton, CO 801231548231897
- Harry Brodie, M.D.Littleton, CO 801231083647143
- Jon Cram, MDLittleton, CO 801231184638215
- Heath Henbest, D.O.Littleton, CO 801231093724882
- Charles Kay, M.D.Littleton, CO 801231063482198
- Lori Leopold, D.O.Littleton, CO 801231366412876
- Dexter Levy, M D P CLittleton, CO 801231255351888
- Cynthia Riegel, MDDenver, CO 801231457394017
Common questions
What is Karen M. Greenwood, MD's NPI number?
Karen M. Greenwood, MD's National Provider Identifier (NPI) is 1275501322, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen M. Greenwood, MD located?
The NPPES record lists a practice address at 5257 S Wadsworth Blvd, Littleton, CO, 80123. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Karen M. Greenwood, MD's license?
NPPES lists Colorado license number 047289, 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 Karen M. Greenwood, MD prescribe under Medicare Part D?
In 2024, Karen M. Greenwood, MD had 7,382 Medicare Part D claims for 711 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.