Rahul Singh Tonk, MD, MBA
Ophthalmology Physician · Princeton, NJ
Rahul Singh Tonk, MD, MBA is an ophthalmology physician with a practice address in Princeton, New Jersey, and NPI 1316207913, issued on May 17, 2012. Check the license (New Jersey 25MA12402400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Rahul Singh Tonk
- Credential
- MD, MBA
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 25MA12402400 NJ
MD492121C PA
Self-reported in NPPES; status is on the state search - Practice location
- 419 N Harrison St, Princeton, NJ 08540
- Phone
- (609) 921-9437
- Enumerated
- May 17, 2012
- Record last updated
- Apr 3, 2026
- Fax
- (609) 921-0277
- Medicare enrollment
- Enrolled (PECOS I20250820004530); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 631 in New Jersey → Look up another NPI →
Also registered at 419 N Harrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rahul Singh Tonk 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 25MA12402400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average ophthalmology physician in 2024
2,214 Medicare Part D claims for 480 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Prednisolone Acetate688 claims
- Ketorolac Tromethamine367 claims
- Moxifloxacin366 claims
- Polymyxin B Sul-Trimethoprim87 claims
- Restasis68 claims
- Fluorometholone61 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): 81.3 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: $22,944.98
32 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Surgical Vision, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Princeton Eye Group, PAPrinceton, NJ
- Wills Eye Ophthalmology Clinic, IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rahul Singh Tonk among 631 ophthalmology physician records in New Jersey
Rahul Singh Tonk, MD, MBA is one of 631 ophthalmology physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 85% of them.
- NPI issued2012 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 1993 among the 454 with a school on file
- Record last updated2026 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 ophthalmology physician records list a practice address in Princeton
They are 20 of the 1,622 NPPES records with a practice address in Princeton, and 631 ophthalmology physician records in New Jersey.
All 631 in New Jersey → Every provider in Princeton → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Laurence Avins, MDPrinceton, NJ 085401902133432
- Gerald Dunham, M.D.Princeton, NJ 085401528173788
- Cynthia Dunham, MDPrinceton, NJ 085401649370909
- John Epstein, M.D.Princeton, NJ 085401851304612
- Stephen Felton, M.D.Princeton, NJ 085401083627806
- Suzanne Jadico, M.D.Princeton, NJ 085401376744342
- Andrew Lipka, MDPrinceton, NJ 085401821199043
- Samuel Liu, M.D.Princeton, NJ 085401245243013
Common questions
What is Rahul Singh Tonk, MD, MBA's NPI number?
Rahul Singh Tonk, MD, MBA's National Provider Identifier (NPI) is 1316207913, issued on May 17, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Rahul Singh Tonk, MD, MBA located?
The NPPES record lists a practice address at 419 N Harrison St, Princeton, NJ, 08540. Phone: (609) 921-9437. Providers update this record themselves, so call before visiting.
How can I verify Rahul Singh Tonk, MD, MBA's license?
NPPES lists New Jersey license number 25MA12402400, 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 Rahul Singh Tonk, MD, MBA prescribe under Medicare Part D?
In 2024, Rahul Singh Tonk, MD, MBA had 2,214 Medicare Part D claims for 480 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Rahul Singh Tonk, MD, MBA's MIPS final score?
The 2023 MIPS final score is 81.3 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.