NPPES file of Aug 9, 2026

Obstetrics & Gynecology Physician in Michigan

1,776 NPPES records list obstetrics & gynecology physician with a practice address in Michigan, 18 per 100,000 residents, the 5th highest rate of 51. Grand Rapids and Ann Arbor have the most; each record links to the provider's NPI and the Michigan license search. Page 24 of 36.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207V00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Grand Rapids has the most, 183

  1. Grand Rapids183
  2. Ann Arbor143
  3. Detroit105
  4. Royal Oak66
  5. Lansing54

Obstetrics & Gynecology Physician records in Michigan

  1. Ronald Nichols, M.D.Wayne, MI 481841245532134
  2. Michael Nicholson, M.D.Clinton Township, MI 480381942241633
  3. Allison Nielsen, MSSaginaw, MI 486021578404083
  4. Brian Nielsen, M.D.Kalamazoo, MI 490071851342349
  5. Karen Niver, MDPort Huron, MI 480601184682940
  6. Chinyere Nnaji, DOJackson, MI 492031669092078
  7. Janelle Noel, DOGrosse Ile, MI 481381073712642
  8. James Nohl, M.D.Dearborn, MI 481261124067715
  9. Manoochehr Noroozian, M.D.Pontiac, MI 483411699856476
  10. Sydnye Nosbusch, MDGrand Rapids, MI 495031356191191
  11. Ruth Vanelle Nouboussi Nzapgho, MDDetroit, MI 482011891542247
  12. Diana Novak, MDTraverse City, MI 496841053362186
  13. Koko Novak, MDAnn Arbor, MI 481041043949811
  14. William Nowak, D.O.Acme, MI 496901194902163
  15. Abby Nowakowski, M.D.Royal Oak, MI 480731083977185
  16. Jennifer Nowasielski, D.O.Warren, MI 480881790991909
  17. Aldo Nunez Hruska, MDLivonia, MI 481521861877730
  18. Samuel NwosuDetroit, MI 482261265705487
  19. Akua Nyarko-Odoom, MDAnn Arbor, MI 481091225872393
  20. Elvira O'Brien, M.D.Midland, MI 486401255500674
  21. Emily O'Brien, DOWarren, MI 480931912601063
  22. Seamus O'Broin, M.D.Canton, MI 481871114140605
  23. Manuela O'Campo, MDSt Clair Shores, MI 480811336130723
  24. Kelly O'Connor, M.D.Ypsilanti, MI 481971659384451
  25. Danyelle O'Dell, MDLansing, MI 489121386173680
  26. Alissa O'Hagan, M.D.Traverse City, MI 496841376874040
  27. Rachel O'Keefe, D.O.West Bloomfield, MI 483231134357288
  28. Sharon O'Leary, M.D.Ypsilanti, MI 481971073526976
  29. Jennifer O'NeillAnn Arbor, MI 481051437545431
  30. Katherine O'Rourke, MDGrand Rapids, MI 495031366708869
  31. Ashlee O'Shell, M.D.Bloomfield Hills, MI 483021912357526
  32. Mary Oatey, D.O.Grand Rapids, MI 495461366404295
  33. Jeffrey Obron, MDWest Bloomfield, MI 483221972533032
  34. Robin Odell, DOMt Pleasant, MI 488581558393108
  35. Joseph Oettinger, MDGrand Rapids, MI 495061144303272
  36. Sang Oh, MDBay City, MI 487061467468959
  37. Mark Ohm, MDTroy, MI 480841245236058
  38. Chioma Okekpe, DOSouthfield, MI 480751740685593
  39. Diana Okuniewski, D.O.Marshall, MI 490681184831547
  40. Kristin Oldenberg, MDGrand Rapids, MI 495031346293362
  41. Shelby Oliverio, DOSouthfield, MI 480751104769066
  42. Darla Olson, M.D.Zeeland, MI 494641114917887
  43. Stephen Olson, D.O.Chesterfield, MI 480471205885977
  44. Ngozika Onyiuke, MDRoseville, MI 480661134743305
  45. Annemarie Opipari, MDAnn Arbor, MI 481091518527787
  46. Anthony Opipari, MDAnn Arbor, MI 481091184711947
  47. Nourhan Orabi, MDDearborn, MI 481241184696718
  48. Christopher Oravitz, M.D.Tawas City, MI 487631316082050
  49. Kayla Orbeck, M.D.Saginaw, MI 486021831835875
  50. Madelyn OrndorffLansing, MI 489121295595080

Source: CMS NPPES, primary taxonomy 207V00000X: records by practice city and the list of records, file of Aug 9, 2026.

Michigan ranks 5 of 51 per resident

  1. Hawaii20
  2. Connecticut20
  3. Rhode Island19
  4. Michigan18
  5. New Hampshire17
  6. Maryland17
  7. 50 states and D.C.14

Source: CMS NPPES, primary taxonomy 207V00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

72.7% of these records appear in a Medicare file, against 75.6% 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. Michigan72.7%
  2. United States75.6%

Obstetrics & Gynecology Physician records in Michigan, measured

  • In a Medicare file1,292 of 1,776 · 72.7% here, 75.6% nationally
  • In the CMS Doctors and Clinicians file1,003 · 56.5% here, 60.3% nationally
  • Not updated in five years or more899 · 50.6% here, 56.2% nationally
  • Median graduation year2007 · the 1,003 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207V00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,776 NPPES records list obstetrics & gynecology physician (207V00000X) as their primary taxonomy with a practice address in Michigan: 18 per 100,000 residents against 14 nationally (50 states and D.C.). Grand Rapids has 183 of them (10%).

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. Pennsylvania1,974
  2. Ohio1,572
  3. North Carolina1,548
  4. Illinois2,062

States with a similar rate per 100,000

  1. Virgin Islands17.2
  2. New Hampshire17.1
  3. Maryland16.7
  4. Rhode Island18.7

The largest states

  1. California5,088
  2. Texas3,524
  3. New York3,174
  4. Florida2,601
  5. Illinois2,062

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.