Robert A. Massa, MD
Internal Medicine Physician · Brighton, CO
Robert A. Massa, MD is an internal medicine physician with a practice address in Brighton, Colorado, and NPI 1427095421, issued on May 31, 2006. Check the license (Colorado 33215, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert A. Massa
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 33215 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1606 Prairie Center Pkwy, Brighton, CO 80601
- Phone
- (303) 659-5800
- Enumerated
- May 31, 2006
- Record last updated
- Mar 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (303) 659-5156
- Medicaid ID
- 01332154 CO
- Medicare enrollment
- Enrolled (PECOS I20040510000126); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 1606 Prairie Center Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Hamman, M.D.Orthopaedic Surgery Physician1003002890
- Vicki Hart, NPObstetrics & Gynecology Nurse Practitioner1366854713
Verify Robert A. Massa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 33215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average internal medicine physician in 2024
8,695 Medicare Part D claims for 530 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 235 claims were for opioids.
Most prescribed
- Atorvastatin Calcium642 claims
- Levothyroxine Sodium501 claims
- Amlodipine Besylate366 claims
- Metoprolol Succinate311 claims
- Gabapentin229 claims
- Alendronate Sodium215 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: $257.92
6 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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 2 group practices
- Platte Valley Medical Group LLCCommerce City, CO
- Select Physical Therapy OF West Denver Limited PartnershipCommerce City, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert A. Massa among 2,046 internal medicine physician records in Colorado
Robert A. Massa, 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
- Graduated1989 · median 2006 among the 1,090 with a school on file
- Record last updated2014 · 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).
Internal Medicine Physician providers in Colorado
There are 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Brighton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kari Kearns, MDBrighton, CO 806011861618233
- Jennifer Lehman, D.O.Brighton, CO 806011528262375
- Rebecca McGourty, M.D.Brighton, CO 806011922425172
- Stephan Shane, D.O.Brighton, CO 806011447332424
- Mi Tran, MDBrighton, CO 806011871098087
- Mark Berntsen, MDGreeley, CO 806311730166687
- Robert Cash, MDGreeley, CO 806311285611152
- Danielle Doro, M.D.Greeley, CO 806311437145190
Common questions
What is Robert A. Massa, MD's NPI number?
Robert A. Massa, MD's National Provider Identifier (NPI) is 1427095421, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert A. Massa, MD located?
The NPPES record lists a practice address at 1606 Prairie Center Pkwy, Brighton, CO, 80601. Phone: (303) 659-5800. Providers update this record themselves, so call before visiting.
How can I verify Robert A. Massa, MD's license?
NPPES lists Colorado license number 33215, 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 Robert A. Massa, MD prescribe under Medicare Part D?
In 2024, Robert A. Massa, MD had 8,695 Medicare Part D claims for 530 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.