Robert Siniakowicz, MD
Internal Medicine Physician · Hamilton Square, NJ
Robert Siniakowicz, MD is an internal medicine physician with a practice address in Hamilton Square, New Jersey, and NPI 1689776122, issued on Sep 4, 2006. Check the license (New Jersey MA 69602, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Siniakowicz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MA 69602 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 2275 Highway 33, Hamilton Square, NJ 08690
- Phone
- (609) 586-6006
- Enumerated
- Sep 4, 2006
- Entity
- Type 1 · individual
Also registered at 2275 Highway 33
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yvonne Berrio, RN,MS,NPCNurse Practitioner1063584266
- Joseph Deblasio, M.D.Internal Medicine Physician1669544003
Verify Robert Siniakowicz 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 MA 69602Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.0 times the Medicare Part D claims of the average internal medicine physician in 2024
11,214 Medicare Part D claims for 996 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 190 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium761 claims
- Levothyroxine Sodium492 claims
- Atorvastatin Calcium456 claims
- Amlodipine Besylate374 claims
- Losartan Potassium340 claims
- Pantoprazole Sodium273 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: $121.06
8 payments, mostly food and beverage; the largest payer was Novo Nordisk Inc. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- Clinical Health Care Associates OF New Jersey PCHamilton, NJ
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
5 internal medicine physician records list a Hamilton Square practice address
They are 5 of the 108 NPPES records with a Hamilton Square practice address, and 5,156 internal medicine physician records in New Jersey.
All 5 in Hamilton Square → All 5,156 in New Jersey → Every provider in Hamilton Square →
Other internal medicine physician records in New Jersey
- Joseph Aaron, MD, FACPShort Hills, NJ1861584633
- Sirike Aasmaa, DOMontville, NJ1861549925
- Holly Abate Bersalona, M.D.Sea Girt, NJ1669500492
- Kaniz Zehra Abbas, MDTrenton, NJ1598253858
- Shahida Abbas, MDOld Bridge, NJ1023104098
- Shahed AbbasiNewark, NJ1477810752
- Samih Abbassi, MDWest Orange, NJ1750380358
- Somaya Abboud, MDWest Orange, NJ1326089004
- Hilal Abboushi, MDBloomfield, NJ1548378029
- Majdi Abdalla, M.D.Atlantic City, NJ1922230135
Common questions
What is Robert Siniakowicz, MD's NPI number?
Robert Siniakowicz, MD's National Provider Identifier (NPI) is 1689776122, issued on Sep 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Siniakowicz, MD located?
The NPPES record lists a practice address at 2275 Highway 33, Hamilton Square, NJ, 08690. Phone: (609) 586-6006. Providers update this record themselves, so call before visiting.
How can I verify Robert Siniakowicz, MD's license?
NPPES lists New Jersey license number MA 69602, 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 Robert Siniakowicz, MD prescribe under Medicare Part D?
In 2024, Robert Siniakowicz, MD had 11,214 Medicare Part D claims for 996 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.