Rowen Gumpas Diano, MD
Geriatric Medicine (Internal Medicine) Physician · Montclair, NJ
Rowen Gumpas Diano, MD is a geriatric medicine (internal medicine) physician with a practice address in Montclair, New Jersey, and NPI 1992862585, issued on Jan 2, 2007. Check the license (New Jersey 25MA0693000, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Rowen Gumpas Diano
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 25MA0693000 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 48 N Fullerton Ave, Montclair, NJ 07042
- Phone
- (973) 744-7337
- Enumerated
- Jan 2, 2007
- Record last updated
- Aug 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (973) 744-5035
- Medicare enrollment
- Enrolled (PECOS I20040727000663); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 165 in New Jersey → Look up another NPI →
Also registered at 48 N Fullerton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evelyn Candalera, NP-CNurse Practitioner1861024796
Verify Rowen Gumpas Diano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA0693000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
12,112 Medicare Part D claims for 437 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 797 claims were for opioids.
Most prescribed
- Atorvastatin Calcium691 claims
- Amlodipine Besylate484 claims
- Furosemide412 claims
- Levothyroxine Sodium364 claims
- Eliquis338 claims
- Pantoprazole Sodium286 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.
The MIPS final score for 2023 (Medicare payment program): 91.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $518.13
6 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 1,004 providers of this specialty with any payment received $1,720.82 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.
Rowen Gumpas Diano among 165 geriatric medicine (internal medicine) physician records in New Jersey
Rowen Gumpas Diano, MD is one of 165 geriatric medicine (internal medicine) physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.
- NPI issued2007 · 58% of these records are older, 28% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1983 · median 1996 among the 106 with a school on file
- Record last updated2019 · 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 207RG0300X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in New Jersey
There are 165 geriatric medicine (internal medicine) physician records in New Jersey.
All 165 in New Jersey → Every provider in Montclair → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Robertha Mendez, MDMontclair, NJ 070421972987907
- Mary Haggerty, MDMaplewood, NJ 070401770551988
- Kannan SivarajuVerona, NJ 070441659508687
- Muthu Arunachalam, M.D.,Livingston, NJ 070391457497356
- Emily Bahler, DOLivingston, NJ 070391346229598
- Theresa Redling, D.O.Livingston, NJ 070391295840379
- Manickam Ganesh, MDWest Orange, NJ 070521962419838
- Anne-Marie Gracia, M.D., MPHWest Orange, NJ 070521447328018
Common questions
What is Rowen Gumpas Diano, MD's NPI number?
Rowen Gumpas Diano, MD's National Provider Identifier (NPI) is 1992862585, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Rowen Gumpas Diano, MD located?
The NPPES record lists a practice address at 48 N Fullerton Ave, Montclair, NJ, 07042. Phone: (973) 744-7337. Providers update this record themselves, so call before visiting.
How can I verify Rowen Gumpas Diano, MD's license?
NPPES lists New Jersey license number 25MA0693000, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rowen Gumpas Diano, MD prescribe under Medicare Part D?
In 2024, Rowen Gumpas Diano, MD had 12,112 Medicare Part D claims for 437 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Rowen Gumpas Diano, MD's MIPS final score?
The 2023 MIPS final score is 91.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.