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DR. NEIL JAMES SINK M.D.
NPI 1659509065
Obstetrics & Gynecology in Mishawaka, IN

Active since June 24, 2009PECOS EnrolledAccepts Medicare Assignment
611 E DOUGLAS RD STE 408, MISHAWAKA, IN 46545(574) 335-6440(574) 335-0806 Get Directions Write a Review

NPPES record last updated: June 16, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 16, 2018, Mar 19, 2018, Jun 21, 2016 (3 updates tracked since 2016).

About Dr. Neil James Sink M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NEIL JAMES SINK M.D. (NPI 1659509065) is an individual obstetrics & gynecology provider in Mishawaka, Indiana, licensed in Indiana (01079255A) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Saint Joseph Regional Medical Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1659509065
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. NEIL JAMES SINKCredential: M.D.
Location Address611 E DOUGLAS RD STE 408Mishawaka, IN 46545-1468
Mailing Address707 E Cedar St, Suite 200South Bend, IN 46617-2057 · (574) 335-8707 · Fax (574) 335-0741
Phone(574) 335-6440
Fax(574) 335-0806
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateJune 24, 2009
Last NPPES UpdateJune 16, 20183 updates tracked since enumeration
✔ NPI 1659509065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in IN · 01079255A✔ Licensed in NE · 29080
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
611 E DOUGLAS RD STE 408, Mishawaka, IN 46545
Open in Google Maps ↗

Other Identifiers 3

OtherIN1041052IN · Medicare
Other000001119328IN · Bcbs
Medicaid300006551IN

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Neil James Sink M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173741949
PECOS Enrollment IDI20171011000323
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Neil Sink reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Saint Joseph Regional Medical Center, Inc.
6.1 mi
Family Medicine
60101 BODNAR BLVD STE 100B
Mishawaka, IN 46544
  • Reassigned Medicare billing, Indiana enrollment
  • 205 clinicians in this Medicare group
NPI 1467406074 (574) 335-8500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Joseph Regional Medical Center

Acute Care Hospitals · Mishawaka, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150012
Location5215 Holy Cross PkwyMishawaka, IN 46545 · St. Joseph County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46545 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JASMINE CHRISTINE CHRISTOPHER NP
Nurse Practitioner (Women's Health)
611 E DOUGLAS RD STE 408
MISHAWAKA, IN 46545
St. Joseph County (574) 355-6440
LINDSEY MARIE CONNOLLY M.D.
Obstetrics & Gynecology
611 E DOUGLAS RD STE 408
MISHAWAKA, IN 46545
St. Joseph County (574) 335-6440
KATHERINE OLEARY
Obstetrics & Gynecology
611 E DOUGLAS RD STE 408
MISHAWAKA, IN 46545
St. Joseph County (574) 335-6440

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Neil Sink's NPI number?

The NPI number for Neil Sink is 1659509065. It was assigned to this individual provider in the NPPES registry on June 24, 2009.

Where is Neil Sink located?

Neil Sink practices at 611 E Douglas Rd Ste 408, Mishawaka, IN 46545. The listed phone number is (574) 335-6440.

What is Neil Sink's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Neil Sink enrolled in Medicare?

Yes. Neil Sink is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Neil Sink's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Neil Sink reassigns Medicare benefits to Saint Joseph Regional Medical Center, Inc. (Mishawaka, IN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Neil Sink's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Neil Sink accept?

Health plans from Anthem Blue Cross and Blue Shield and CareSource list Neil Sink as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Neil Sink affiliated with any hospitals?

According to CMS data, Neil Sink is affiliated with Saint Joseph Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Neil Sink was last updated on June 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.