Neil James Sink, M.D.
Obstetrics & Gynecology Physician · Mishawaka, IN
Neil James Sink, M.D. is an obstetrics & gynecology physician with a practice address in Mishawaka, Indiana, and NPI 1659509065, issued on Jun 24, 2009. Check the license (Indiana 01079255A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Neil James Sink
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 01079255A IN
29080 NE
Self-reported in NPPES; status is on the state search - Practice location
- 611 E Douglas RD Ste 408, Mishawaka, IN 46545
- Phone
- (574) 335-6440
- Enumerated
- Jun 24, 2009
- Record last updated
- Jun 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (574) 335-0806
- Medicaid ID
- 300006551 IN
- Medicare enrollment
- Enrolled (PECOS I20171011000323); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 894 in Indiana → Look up another NPI →
Also registered at 611 E Douglas RD Ste 408
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jasmine Christopher, NPWomen's Health Nurse Practitioner1013421049
- Lindsey Connolly, M.D.Obstetrics & Gynecology Physician1386177830
- Katherine OlearyObstetrics & Gynecology Physician1538695606
Verify Neil James Sink in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01079255ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
65 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Saint Joseph Regional Medical Center IncMishawaka, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neil James Sink among 894 obstetrics & gynecology physician records in Indiana
Neil James Sink, M.D. is one of 894 obstetrics & gynecology physician records with a practice address in Indiana. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 68% of them.
- NPI issued2009 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2009 · median 2004 among the 591 with a school on file
- Record last updated2018 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Indiana
There are 894 obstetrics & gynecology physician records in Indiana.
All 894 in Indiana → Every provider in Mishawaka → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jodi CarboneMishawaka, IN 465451528500154
- Lindsey Connolly, M.D.Mishawaka, IN 465451386177830
- Shawn Naranjo, MDMishawaka, IN 465451629338777
- Katherine OlearyMishawaka, IN 465451538695606
- David Parker, M.D.Mishawaka, IN 465451609175777
- Gayle Borkowski, MDMilford, IN 465421902890718
- Thomas Spencer, MDKnox, IN 465341295796985
- Ann Broz, M.D.Granger, IN 465301457614760
Common questions
What is Neil James Sink, M.D.'s NPI number?
Neil James Sink, M.D.'s National Provider Identifier (NPI) is 1659509065, issued on Jun 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Neil James Sink, M.D. located?
The NPPES record lists a practice address at 611 E Douglas RD Ste 408, Mishawaka, IN, 46545. Phone: (574) 335-6440. Providers update this record themselves, so call before visiting.
How can I verify Neil James Sink, M.D.'s license?
NPPES lists Indiana license number 01079255A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Neil James Sink, M.D. prescribe under Medicare Part D?
In 2024, Neil James Sink, M.D. had 65 Medicare Part D claims for 22 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.