Mark D. Schwartz, MD
Internal Medicine Physician · Boulder, CO
Mark D. Schwartz, MD is an internal medicine physician with a practice address in Boulder, Colorado, and NPI 1881622629, issued on Jun 29, 2006. Check the license (Colorado 37095, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark D. Schwartz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 37095 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2525 13TH St, Boulder, CO 80304
- Phone
- (303) 665-3036
- Enumerated
- Jun 29, 2006
- Record last updated
- Oct 22, 2025
- Medicaid ID
- 02156202 CO
- Medicare enrollment
- Enrolled (PECOS I20091211000274); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 2525 13TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Ahumada, PAPhysician Assistant1093429029
- Amy Alper, PAPhysician Assistant1104814540
- Alison Alter, FNPFamily Nurse Practitioner1528534211
- Christa Ambrose, DOFamily Medicine Physician1902912116
- Erin Atkinson, ARNPFamily Nurse Practitioner1730170689
- Emily Barnak, PA-CPhysician Assistant1033441431
Verify Mark D. Schwartz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 37095Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average internal medicine physician in 2024
4,253 Medicare Part D claims for 142 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims. 79 claims were for opioids.
Most prescribed
- Biktarvy417 claims
- Tivicay290 claims
- Descovy166 claims
- Atorvastatin Calcium157 claims
- Lisinopril145 claims
- Symtuza100 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: $73.86
1 payment: food and beverage; the largest payer was Skeletal Dynamics Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 one group practice
- Clinica Campesina Family Health ServicesLafayette, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Schwartz among 2,046 internal medicine physician records in Colorado
Mark D. Schwartz, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1994 · median 2006 among the 1,090 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
74 internal medicine physician records list a practice address in Boulder
They are 74 of the 5,635 NPPES records with a practice address in Boulder, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Boulder → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Blanchet, MDBoulder, CO 803041659466837
- William Brubaker, M.D.Boulder, CO 803041740262559
- Amy Campbell, MDBoulder, CO 803041033108642
- Jeffrey Carter, M.D.Boulder, CO 803041457441032
- Jennifer Christensen, MDBoulder, CO 803041750365417
- Jose Delgado, M.D.Boulder, CO 803041275559049
- Coco Dughi, M.D.Boulder, CO 803041356325013
- Connor Graham, M.D.Boulder, CO 803041669421301
Common questions
What is Mark D. Schwartz, MD's NPI number?
Mark D. Schwartz, MD's National Provider Identifier (NPI) is 1881622629, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Schwartz, MD located?
The NPPES record lists a practice address at 2525 13TH St, Boulder, CO, 80304. Phone: (303) 665-3036. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Schwartz, MD's license?
NPPES lists Colorado license number 37095, 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 Mark D. Schwartz, MD prescribe under Medicare Part D?
In 2024, Mark D. Schwartz, MD had 4,253 Medicare Part D claims for 142 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.