NPPES file of Aug 9, 2026

Walter Anthony Sinopoli, M.D.

Obstetrics & Gynecology Physician · Rumson, NJ

Walter Anthony Sinopoli, M.D. is an obstetrics & gynecology physician with a practice address in Rumson, New Jersey, and NPI 1558534966, issued on Apr 7, 2008. Check the license (New Jersey 25MA03636300, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558534966
Name
Walter Anthony Sinopoli
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
25MA03636300 NJ
Self-reported in NPPES; status is on the state search
Practice location
9 N Rohallion Dr, Rumson, NJ 07760
Phone
(908) 330-9966
Enumerated
Apr 7, 2008
Record last updated
Apr 7, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
4866207 NJ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Walter Anthony Sinopoli in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA03636300
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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42% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

95 Medicare Part D claims for 13 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Walter Sinopoli95
  2. Specialty average165

Most prescribed

  1. Buprenorphine-Naloxone48 claims
  2. Zubsolv34 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.

1 obstetrics & gynecology physician records list a practice address in Rumson

They are 1 of the 59 NPPES records with a practice address in Rumson, and 1,362 obstetrics & gynecology physician records in New Jersey.

Other obstetrics & gynecology physician records in New Jersey

  1. Pegah Aalami-HarandiPaterson, NJ1740654441
  2. Aileen Abankwa, MDVineland, NJ1457840365
  3. Tara Abella, M.D.Livingston, NJ1104051242
  4. Manisha Abeysinghe, MDFlemington, NJ1306807045
  5. Nazima Abrarova, M.D.Plainfield, NJ1487850319
  6. Rashmi Acharya, MDNorth Brunswick, NJ1871538405
  7. Melissa Ackerman, MDPrinceton, NJ1093877466
  8. Shaun AdairMorristown, NJ1376906693
  9. Susanne Adamson, M.D.Voorhees, NJ1679646012
  10. Rotanna Adefowokan, MDNeptune, NJ1417220146

Common questions

What is Walter Anthony Sinopoli, M.D.'s NPI number?

Walter Anthony Sinopoli, M.D.'s National Provider Identifier (NPI) is 1558534966, issued on Apr 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Walter Anthony Sinopoli, M.D. located?

The NPPES record lists a practice address at 9 N Rohallion Dr, Rumson, NJ, 07760. Phone: (908) 330-9966. Providers update this record themselves, so call before visiting.

How can I verify Walter Anthony Sinopoli, M.D.'s license?

NPPES lists New Jersey license number 25MA03636300, 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 Walter Anthony Sinopoli, M.D. prescribe under Medicare Part D?

In 2024, Walter Anthony Sinopoli, M.D. had 95 Medicare Part D claims for 13 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.