Mark H. Nathanson, D.O.
Family Medicine Physician · Aurora, CO
Mark H. Nathanson, D.O. is a family medicine physician with a practice address in Aurora, Colorado, and NPI 1811998289, issued on Aug 9, 2005. Check the license (Colorado 32517, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark H. Nathanson
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 32517 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1550 S Potomac St, Aurora, CO 80012
- Phone
- (303) 369-1080
- Enumerated
- Aug 9, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (303) 750-4913
- Medicare enrollment
- Enrolled (PECOS I20041230000350); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1991
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1550 S Potomac St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mark Berland, DOGynecology Physician1124089107
- George Chin, MDSpecialist1013903707
- Katrina Coulter, M.D.Infectious Disease Physician1033343819
- Gordon Deagman, M.D.Internal Medicine Physician1346235439
Verify Mark H. Nathanson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 32517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average family medicine physician in 2024
2,562 Medicare Part D claims for 266 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium245 claims
- Levothyroxine Sodium154 claims
- Losartan Potassium115 claims
- Amlodipine Besylate104 claims
- Metformin Hcl94 claims
- Rosuvastatin Calcium90 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.
Mark H. Nathanson among 3,563 family medicine physician records in Colorado
Mark H. Nathanson, D.O. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1991 · 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).
220 family medicine physician records list a practice address in Aurora
They are 220 of the 17,400 NPPES records with a practice address in Aurora, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Aurora → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Samuel Cloud, MDAurora, CO 800121720071491
- Howard Corren, MDAurora, CO 800121114994696
- Eric Groce, D.O.Aurora, CO 800121295723674
- Martin Hannemann, M.D.Aurora, CO 800121750382263
- Stephen HeinzAurora, CO 800121114900784
- Julia Jung, M.D.Aurora, CO 800121366403297
- Dena Lichfield, D.O.Aurora, CO 800121952375545
- Quinn Lichfield, D.O.Aurora, CO 800121770557357
Common questions
What is Mark H. Nathanson, D.O.'s NPI number?
Mark H. Nathanson, D.O.'s National Provider Identifier (NPI) is 1811998289, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark H. Nathanson, D.O. located?
The NPPES record lists a practice address at 1550 S Potomac St, Aurora, CO, 80012. Phone: (303) 369-1080. Providers update this record themselves, so call before visiting.
How can I verify Mark H. Nathanson, D.O.'s license?
NPPES lists Colorado license number 32517, 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 H. Nathanson, D.O. prescribe under Medicare Part D?
In 2024, Mark H. Nathanson, D.O. had 2,562 Medicare Part D claims for 266 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.