NPPES file of Aug 9, 2026

Reproductive Endocrinology Physician in New Jersey

79 NPPES records list reproductive endocrinology physician with a practice address in New Jersey, 0.9 per 100,000 residents, the 7th highest rate of 48. Basking Ridge and Marlton have the most; each record links to the provider's NPI and the New Jersey license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207VE0102X · method

Basking Ridge has the most, 25

Reproductive Endocrinology Physician records in New Jersey

  1. Ndidiamaka Onwubalili, M.D.Millburn, NJ 070411851596696
  2. Emily Osman, M.D.Marlton, NJ 080531992144653
  3. Gary Packin, D.O.Marlton, NJ 080531457323420
  4. Barry Perlman, DOLivingston, NJ 070391376963124
  5. Kavitha Persaud, MDHasbrouck Heights, NJ 076041346684123
  6. Sasha Prakash, M.D.Bayonne, NJ 070021417916701
  7. Douglas Rabin, MDFair Lawn, NJ 074101326156480
  8. Eden Rauch, M.D.Basking Ridge, NJ 079201336387927
  9. Linda Robins, M.D.Upper Montclair, NJ 070431154579795
  10. Eli Rybak, MDBasking Ridge, NJ 079201306926969
  11. Mark Sauer, MDNew Brunswick, NJ 089011770644783
  12. Stephen Sawin, M.D.Marlton, NJ 080531821062456
  13. Adina SchwartzSomerset, NJ 088731992159198
  14. Gary Alan Shangold, M.D.Califon, NJ 078301720009517
  15. Jacquelyn Shaw, M.D.Hasbrouck Heights, NJ 076041720187347
  16. Michael Simoni, M.D.Basking Ridge, NJ 079201871906008
  17. Robert Skaf, M.D.Marlton, NJ 080531497727051
  18. Kaitlin Smith, PA-CWest Orange, NJ 070521497344311
  19. Paul Stumpf, M.D.Summit, NJ 079011235195801
  20. Susan Treiser, MD PHDBasking Ridge, NJ 079201740492990
  21. Ashley Ulker, MDEatontown, NJ 077241700317112
  22. Peter Vandeerlin, M.D.Marlton, NJ 080531629040365
  23. Lauren Weissmann, MDMarlton, NJ 080531821217191
  24. Marie Werner, M.D.Basking Ridge, NJ 079201962660621
  25. Stephanie Willson, MDBasking Ridge, NJ 079201043715584
  26. Susan Wolf, MDHasbrouck Heights, NJ 076041427102110
  27. Melissa Yih, MDBasking Ridge, NJ 079201992973036
  28. Jennifer Zhang, MDNew Brunswick, NJ 089011841920204
  29. William Ziegler, D.O.Eatontown, NJ 077241649265307

Source: CMS NPPES, primary taxonomy 207VE0102X: records by practice city and the list of records, file of Aug 9, 2026.

New Jersey ranks 7 of 48 per resident

  1. District of Columbia1.0
  2. Massachusetts1.0
  3. Vermont0.9
  4. New Jersey0.9
  5. Hawaii0.8
  6. California0.7
  7. 50 states and D.C.0.5

Source: CMS NPPES, primary taxonomy 207VE0102X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

68.4% of these records appear in a Medicare file, against 70.3% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. New Jersey68.4%
  2. United States70.3%

Reproductive Endocrinology Physician records in New Jersey, measured

  • In a Medicare file54 of 79 · 68.4% here, 70.3% nationally
  • In the CMS Doctors and Clinicians file5 · 6.3% here, 14.8% nationally
  • Not updated in five years or more49 · 62.0% here, 57.3% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207VE0102X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

79 NPPES records list reproductive endocrinology physician (207VE0102X) as their primary taxonomy with a practice address in New Jersey: 0.9 per 100,000 residents against 0.5 nationally (50 states and D.C.). Basking Ridge has 25 of them (32%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Illinois79
  2. Pennsylvania83
  3. Massachusetts69
  4. Florida93

States with a similar rate per 100,000

  1. Hawaii0.8
  2. California0.7
  3. New York1.1
  4. Maryland0.6

The largest states

  1. California267
  2. New York206
  3. Texas150
  4. Florida93
  5. Pennsylvania83

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.