Michael C. Ruddy, M.D.
Specialist · Princeton Junction, NJ
Michael C. Ruddy, M.D. is a specialist with a practice address in Princeton Junction, New Jersey, and NPI 1831138015, issued on Jun 5, 2006. Check the license (New Jersey MA31313, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael C. Ruddy
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- MA31313 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 88 Princeton Hightstown RD, Princeton Junction, NJ 08550
- Phone
- (609) 750-7330
- Enumerated
- Jun 5, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (609) 750-7336
- Medicaid ID
- 1214608 NJ
- Medicare enrollment
- Enrolled (PECOS I20051027000670); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1974
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,636 in New Jersey → Look up another NPI →
Also registered at 88 Princeton Hightstown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tasheema Anderson, MA, PH.D., LPC, NCCProfessional Counselor1811647175
- Seema Basi, MDSpecialist1497793202
- Grace Bialy, M.D.Specialist1427002351
- Sandhya Chinala, MDPsychiatry Physician1487037248
- Elizabeth Cohen, LCSWClinical Social Worker1487085114
- Vadim Finkielstein, M.D.Specialist1336188481
Verify Michael C. Ruddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license MA31313Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average specialist in 2024
2,506 Medicare Part D claims for 270 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate291 claims
- Chlorthalidone280 claims
- Irbesartan148 claims
- Atorvastatin Calcium146 claims
- Bisoprolol Fumarate144 claims
- Allopurinol113 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $297.66
13 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Princeton Hypertension-Nephrology Associates L L CPrinceton Junction, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael C. Ruddy among 1,636 specialist records in New Jersey
Michael C. Ruddy, M.D. is one of 1,636 specialist records with a practice address in New Jersey. 38% 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, 48% newer
- In a Medicare fileYes · 38% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1974 · median 1989 among the 474 with a school on file
- Record last updated2026 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 specialist records list a practice address in Princeton Junction
They are 6 of the 148 NPPES records with a practice address in Princeton Junction, and 1,636 specialist records in New Jersey.
All 1,636 in New Jersey → Every provider in Princeton Junction → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Seema Basi, MDPrinceton Junction, NJ 085501497793202
- Grace Bialy, M.D.Princeton Junction, NJ 085501427002351
- Vadim Finkielstein, M.D.Princeton Junction, NJ 085501336188481
- Carol Foster, MS, OTRLPrinceton Junction, NJ 085501003039058
- William Serverson, A.T.C.Princeton Junction, NJ 085501659439982
- Russell Steves, M.ED., PT, ATCPrinceton, NJ 085441699797035
- Charles Thompson, ATCPrinceton, NJ 085441326010927
- Amethyst Lewis, COTA/LSkillman, NJ 085581700244787
Common questions
What is Michael C. Ruddy, M.D.'s NPI number?
Michael C. Ruddy, M.D.'s National Provider Identifier (NPI) is 1831138015, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael C. Ruddy, M.D. located?
The NPPES record lists a practice address at 88 Princeton Hightstown RD, Princeton Junction, NJ, 08550. Phone: (609) 750-7330. Providers update this record themselves, so call before visiting.
How can I verify Michael C. Ruddy, M.D.'s license?
NPPES lists New Jersey license number MA31313, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Michael C. Ruddy, M.D. prescribe under Medicare Part D?
In 2024, Michael C. Ruddy, M.D. had 2,506 Medicare Part D claims for 270 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Michael C. Ruddy, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.