Rosemary A. Greenslade, M.D.
Adult Medicine Physician · Boulder, CO
Rosemary A. Greenslade, M.D. is an adult medicine physician with a practice address in Boulder, Colorado, and NPI 1134245319, issued on Mar 21, 2007. Check the license (Colorado 34314, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rosemary A. Greenslade
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- 34314 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2750 Broadway St, Boulder, CO 80304
- Phone
- (303) 440-3200
- Enumerated
- Mar 21, 2007
- Record last updated
- Mar 10, 2025
- Fax
- (303) 440-3232
- Medicare enrollment
- Enrolled (PECOS I20040129001133); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 38 in Colorado → Look up another NPI →
Also registered at 2750 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Baade, AUDAudiologist1700028958
- Karen Bant-Kreutzer, ANP-CAdult Health Nurse Practitioner1093146110
- Erin Beaudin, FNPFamily Nurse Practitioner1558194290
- Pamela Christine BelinAudiologist1750598991
Verify Rosemary A. Greenslade in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 34314Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average adult medicine physician in 2024
303 Medicare Part D claims for 245 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Azithromycin34 claims
- Cephalexin28 claims
- Nitrofurantoin Mono-Macro21 claims
- Methylprednisolone19 claims
- Mupirocin19 claims
- Sulfamethoxazole-Trimethoprim16 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
- Boulder Medical Center, PCBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rosemary A. Greenslade among 38 adult medicine physician records in Colorado
Rosemary A. Greenslade, M.D. is one of 38 adult medicine physician records with a practice address in Colorado. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 53% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1989 · median 2020 among the 15 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in Colorado
There are 38 adult medicine physician records in Colorado.
All 38 in Colorado → Every provider in Boulder → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Joseph Montante, M.D.Boulder, CO 803051275740706
- Susan Emerson, PA-CBoulder, CO 803021346631637
- Carl-Philippe RousseauGlendale, CO 802461881077030
- Kris Johnson, M.D.Lakewood, CO 802281033138565
- Alexis Parker, M.D.Denver, CO 802241477758613
- Valerie Gibson, D.O.Denver, CO 802111275657504
- John Butchko, NPParker, CO 801341992472633
- Louise Fullerton, M.D.Littleton, CO 801271730301920
Common questions
What is Rosemary A. Greenslade, M.D.'s NPI number?
Rosemary A. Greenslade, M.D.'s National Provider Identifier (NPI) is 1134245319, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Rosemary A. Greenslade, M.D. located?
The NPPES record lists a practice address at 2750 Broadway St, Boulder, CO, 80304. Phone: (303) 440-3200. Providers update this record themselves, so call before visiting.
How can I verify Rosemary A. Greenslade, M.D.'s license?
NPPES lists Colorado license number 34314, 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 Rosemary A. Greenslade, M.D. prescribe under Medicare Part D?
In 2024, Rosemary A. Greenslade, M.D. had 303 Medicare Part D claims for 245 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.