Michael S. Firstenberg, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Aurora, CO
Michael S. Firstenberg, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Aurora, Colorado, and NPI 1912961749, issued on Apr 17, 2006. Check the license (Colorado 0059627, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael S. Firstenberg
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 0059627 CO
5371563 ID
22431 NV
35074025 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1444 S Potomac St Ste 200, Aurora, CO 80012
- Phone
- (303) 226-4650
- Enumerated
- Apr 17, 2006
- Record last updated
- Jul 8, 2025
- Fax
- (303) 751-6069
- Medicaid ID
- 2626411 OH
- Medicare enrollment
- Enrolled (PECOS I20250722001381); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 87 in Colorado → Look up another NPI →
Also registered at 1444 S Potomac St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison Hart, PA-CSurgical Physician Assistant1376147496
- Jody Long, NPFamily Nurse Practitioner1558639294
- Geoffrey Smith, PACPhysician Assistant1255087870
- Dollaya Tresner, PASurgical Physician Assistant1639911910
Verify Michael S. Firstenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 0059627Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $1,975.13
24 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 4,047 providers of this specialty with any payment received $7,828.84 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 3 group practices
- Monument Health Rapid City Hospital IncRapid City, SD
- Ryan M Smith DO IncKaneohe, HI
- Saint Alphonsus Regional Medical Center IncBoise, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Firstenberg among 87 thoracic surgery (cardiothoracic vascular surgery) physician records in Colorado
Michael S. Firstenberg, MD is one of 87 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Colorado. 78% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 43% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1996 · median 2000 among the 58 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Colorado
There are 87 thoracic surgery (cardiothoracic vascular surgery) physician records in Colorado.
All 87 in Colorado → Every provider in Aurora → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Allan Brants, MDWheat Ridge, CO 800331982682019
- Cesar Cantu, MDWheat Ridge, CO 800331902886559
- Robert Morelock, MDWheat Ridge, CO 800331649258542
- Franco Rea, M.D.Wheat Ridge, CO 800331619980703
- Edwin Walker, MDWheat Ridge, CO 800331558349696
- David Campbell, MDAurora, CO 800451386738615
- Joseph Cleveland, MDAurora, CO 800451801980131
- Frederick Grover, MDAurora, CO 800451255425518
Common questions
What is Michael S. Firstenberg, MD's NPI number?
Michael S. Firstenberg, MD's National Provider Identifier (NPI) is 1912961749, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Firstenberg, MD located?
The NPPES record lists a practice address at 1444 S Potomac St Ste 200, Aurora, CO, 80012. Phone: (303) 226-4650. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Firstenberg, MD's license?
NPPES lists Colorado license number 0059627, 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.
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.