Matthew John Ptaszkiewicz, M. D.
Family Medicine Physician · Windsor, CO
Matthew John Ptaszkiewicz, M. D. is a family medicine physician with a practice address in Windsor, Colorado, and NPI 1952367880, issued on Apr 20, 2006. Check the license (Colorado 49467, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Matthew John Ptaszkiewicz
- Credential
- M. D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 49467 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1683 Main St, Windsor, CO 80550
- Phone
- (970) 400-7618
- Enumerated
- Apr 20, 2006
- Record last updated
- Feb 3, 2026
- Fax
- (970) 823-9007
- Medicaid ID
- 04380771 CO
- Medicare enrollment
- Enrolled (PECOS I20110216000767); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1999
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1683 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Agnes Carsen Bahn, MDFamily Medicine Physician1386137537
- Alexander Block, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1629334495
- Karah Cloxton, MDFamily Medicine Physician1528326576
- Theresa Creten, PAPhysician Assistant1699247155
- Zachary Devilbiss, DOSports Medicine (Family Medicine) Physician1942615471
- Lindsay Green, DNPFamily Nurse Practitioner1083193858
Verify Matthew John Ptaszkiewicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 49467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average family medicine physician in 2024
421 Medicare Part D claims for 307 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone137 claims
- Azithromycin49 claims
- Cefdinir25 claims
- Paxlovid20 claims
- Amoxicillin17 claims
- Ciprofloxacin Hcl16 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.
Industry payments in 2024: $16.90
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Banner Fort Collins Pcp LLCWindsor, CO
- Vmd Primary Providers Colorado IncWindsor, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew John Ptaszkiewicz among 3,563 family medicine physician records in Colorado
Matthew John Ptaszkiewicz, M. D. 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
- Graduated1999 · median 2008 among the 2,077 with a school on file
- Record last updated2026 · 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).
23 family medicine physician records list a practice address in Windsor
They are 23 of the 476 NPPES records with a practice address in Windsor, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Windsor → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Egle Bakanauskas, M.D.Windsor, CO 805501902950223
- Robert Bradley, M.D.Windsor, CO 805501508910894
- Troy Buchholz, M.D.Windsor, CO 805501154315976
- Michael Carey, M.D.Windsor, CO 805501760536064
- Karah Cloxton, MDWindsor, CO 805501528326576
- Jonathan Kary, MDWindsor, CO 805501811982788
- Trina Kessinger, MDWindsor, CO 805501356347785
- Margaret Lesage, MDWindsor, CO 805501225242225
Common questions
What is Matthew John Ptaszkiewicz, M. D.'s NPI number?
Matthew John Ptaszkiewicz, M. D.'s National Provider Identifier (NPI) is 1952367880, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew John Ptaszkiewicz, M. D. located?
The NPPES record lists a practice address at 1683 Main St, Windsor, CO, 80550. Phone: (970) 400-7618. Providers update this record themselves, so call before visiting.
How can I verify Matthew John Ptaszkiewicz, M. D.'s license?
NPPES lists Colorado license number 49467, 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 Matthew John Ptaszkiewicz, M. D. prescribe under Medicare Part D?
In 2024, Matthew John Ptaszkiewicz, M. D. had 421 Medicare Part D claims for 307 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.