John Sigva
Internal Medicine Physician · East Windsor, NJ
John Sigva is an internal medicine physician with a practice address in East Windsor, New Jersey, and NPI 1093209520, issued on Jun 18, 2018. Check the license (New Jersey 25MB12496100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Sigva
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 25MB12496100 NJ
312345 NY
Self-reported in NPPES; status is on the state search - Practice location
- 557 US Highway 130 # North, East Windsor, NJ 08520
- Phone
- (609) 303-4480
- Enumerated
- Jun 18, 2018
- Record last updated
- Jan 30, 2025
- Fax
- (609) 303-4481
- Medicare enrollment
- Enrolled (PECOS I20250204000709); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Verify John Sigva 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 25MB12496100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,711 Medicare Part D claims for 336 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium271 claims
- Amlodipine Besylate197 claims
- Levothyroxine Sodium106 claims
- Losartan Potassium101 claims
- Omeprazole95 claims
- Metformin Hcl87 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: $62.38
3 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences 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
- Capital Health Medical GroupHightstown, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Sigva among 4,632 internal medicine physician records in New Jersey
John Sigva 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 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2018 · median 2000 among the 3,132 with a school on file
- Record last updated2025 · 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).
17 internal medicine physician records list a practice address in East Windsor
They are 17 of the 321 NPPES records with a practice address in East Windsor, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in East Windsor → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Victoria Abellana, M.D.Hightstown, NJ 085201336157635
- Gabriela Bowers, M.D.East Windsor, NJ 085201316996853
- Ronald Dubow, M.D.East Windsor, NJ 085201861484255
- Ghalia Hanif, M.DEast Windsor, NJ 085201952556326
- Sunit Jariwala, MDEast Windsor, NJ 085201447411814
- Mark Kovarik, MDEast Windsor, NJ 085201881706265
- Farhan Malik, MDEast Windsor, NJ 085201437572468
- Rakesh Mangal, M.D.East Windsor, NJ 085201356305221
Common questions
What is John Sigva's NPI number?
John Sigva's National Provider Identifier (NPI) is 1093209520, issued on Jun 18, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Sigva located?
The NPPES record lists a practice address at 557 US Highway 130 # North, East Windsor, NJ, 08520. Phone: (609) 303-4480. Providers update this record themselves, so call before visiting.
How can I verify John Sigva's license?
NPPES lists New Jersey license number 25MB12496100, 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 John Sigva prescribe under Medicare Part D?
In 2024, John Sigva had 2,711 Medicare Part D claims for 336 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.