Mary A. Macsalka, M.D.
Gynecology Physician · Boulder, CO
Mary A. Macsalka, M.D. is a gynecology physician with a practice address in Boulder, Colorado, and NPI 1205942422, issued on Aug 21, 2006. Check the license (Colorado 16156, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mary A. Macsalka
- Credential
- M.D.
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- 16156 CO
Self-reported in NPPES; status is on the state search - Practice location
- 4745 Arapahoe Ave Ste 110, Boulder, CO 80303
- Phone
- (303) 444-5110
- Enumerated
- Aug 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (303) 444-7457
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 52 in Colorado → Look up another NPI →
Also registered at 4745 Arapahoe Ave Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Curzon, PA-CPhysician Assistant1134695745
- Christine Hansen, M.D.Gynecology Physician1447362553
- Madison Lohmann, WHCNPWomen's Health Nurse Practitioner1174485650
- Catherine Ryan, M.D.Gynecology Physician1730295940
- Lauren Weaver, P.A.Physician Assistant1073887121
Verify Mary A. Macsalka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 16156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average gynecology physician in 2024
22 Medicare Part D claims, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D.
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.
Mary A. Macsalka among 52 gynecology physician records in Colorado
Mary A. Macsalka, M.D. is one of 52 gynecology physician records with a practice address in Colorado. 46% 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 23% of them.
- NPI issued2006 · 23% of these records are older, 31% newer
- In a Medicare fileYes · 46% of these records are
- In the CMS Doctors and Clinicians fileNo · 25% of these records are
- Record last updated2007 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in Colorado
There are 52 gynecology physician records in Colorado.
All 52 in Colorado → Every provider in Boulder → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Christine Hansen, M.D.Boulder, CO 803031447362553
- John Imig, M.D.Boulder, CO 803031801870530
- Catherine Ryan, M.D.Boulder, CO 803031730295940
- Ruth Weinberg, M.D.Boulder, CO 803011639305873
- Ann Mattson, MDBoulder, CO 803091912085952
- Gretchen Bruno, MDDenver, CO 802471518094556
- Paula VasichkoDenver, CO 802381508355975
- Ray Gottesfeld, M.D.Denver, CO 802201588932008
Common questions
What is Mary A. Macsalka, M.D.'s NPI number?
Mary A. Macsalka, M.D.'s National Provider Identifier (NPI) is 1205942422, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary A. Macsalka, M.D. located?
The NPPES record lists a practice address at 4745 Arapahoe Ave Ste 110, Boulder, CO, 80303. Phone: (303) 444-5110. Providers update this record themselves, so call before visiting.
How can I verify Mary A. Macsalka, M.D.'s license?
NPPES lists Colorado license number 16156, 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 Mary A. Macsalka, M.D. prescribe under Medicare Part D?
In 2024, Mary A. Macsalka, M.D. had 22 Medicare Part D claims; the average among gynecology physician prescribers was 299. 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.