Steven Richard Delmaestro, M.D.
Internal Medicine Physician · Somerset, NJ
Steven Richard Delmaestro, M.D. is an internal medicine physician with a practice address in Somerset, New Jersey, and NPI 1851442206, issued on Jan 14, 2007. Check the license (New Jersey 25MAO4924500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Steven Richard Delmaestro
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MAO4924500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 454 Elizabeth Ave, Somerset, NJ 08873
- Phone
- (908) 685-2526
- Enumerated
- Jan 14, 2007
- Record last updated
- Feb 8, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (908) 685-2527
- Medicare enrollment
- Enrolled (PECOS I20050510000065); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 454 Elizabeth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Catanzaro, MDInternal Medicine Physician1306838578
- Dominique Dierking, MOTOccupational Therapist1902575996
- Alexis Hambley, PAPhysician Assistant1578291472
- Derek MartinChiropractor1235715434
- Josephine Ngong, PHD, ODOptometrist1912075276
- Thomas Witek, DCChiropractor1528791043
Verify Steven Richard Delmaestro 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 25MAO4924500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average internal medicine physician in 2024
4,418 Medicare Part D claims for 375 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. 155 claims were for opioids.
Most prescribed
- Atorvastatin Calcium294 claims
- Rosuvastatin Calcium194 claims
- Alprazolam163 claims
- Amlodipine Besylate144 claims
- Levothyroxine Sodium141 claims
- Trazodone Hcl100 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): 93.7 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: $351.12
17 payments; by number, the most common kind was food and beverage; the largest payer was Mannkind Corporation. 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
- Rwjbh Primary Care ServicesSomerset, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Richard Delmaestro among 4,632 internal medicine physician records in New Jersey
Steven Richard Delmaestro, M.D. is one of 4,632 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 50% of them.
- NPI issued2007 · 50% of these records are older, 41% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1981 · median 2000 among the 3,132 with a school on file
- Record last updated2017 · 63% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 internal medicine physician records list a practice address in Somerset
They are 25 of the 1,061 NPPES records with a practice address in Somerset, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Somerset → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Donna Catanzaro, MDSomerset, NJ 088731306838578
- Aparna Chandrasekaran, MDSomerset, NJ 088731871544957
- Linda Compagnone, MDSomerset, NJ 088731720059371
- Art Heinrich, MDSomerset, NJ 088731386665701
- Deepak Jain, MDSomerset, NJ 088731356368823
- Dvinder Kaur, MDSomerset, NJ 088731285605238
- Solomon Kuchipudi, M.D.Somerset, NJ 088731073544284
- Marykutty Kuriakose, MDSomerset, NJ 088731194738369
Common questions
What is Steven Richard Delmaestro, M.D.'s NPI number?
Steven Richard Delmaestro, M.D.'s National Provider Identifier (NPI) is 1851442206, issued on Jan 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Steven Richard Delmaestro, M.D. located?
The NPPES record lists a practice address at 454 Elizabeth Ave, Somerset, NJ, 08873. Phone: (908) 685-2526. Providers update this record themselves, so call before visiting.
How can I verify Steven Richard Delmaestro, M.D.'s license?
NPPES lists New Jersey license number 25MAO4924500, 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 Steven Richard Delmaestro, M.D. prescribe under Medicare Part D?
In 2024, Steven Richard Delmaestro, M.D. had 4,418 Medicare Part D claims for 375 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Steven Richard Delmaestro, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.7 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.