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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM M. UNWIN M.D.
NPI 1801840608
Obstetrics & Gynecology in York, PA

Active since May 19, 2006PECOS Enrolled
1693 S QUEEN ST, YORK, PA 17403(717) 845-1621(717) 854-6939 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 13, 2025, Apr 6, 2022, Aug 31, 2020 (3 updates tracked since 2020).

About William M. Unwin M.d. NPPES

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

WILLIAM M. UNWIN M.D. (NPI 1801840608) is an individual obstetrics & gynecology provider in York, Pennsylvania, licensed in Pennsylvania (MD037927E) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Wellspan Good Samaritan Hospital, and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1801840608
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameWILLIAM M. UNWINCredential: M.D.
Location Address1693 S QUEEN STYork, PA 17403-4609
Mailing Address601 Memory LnYork, PA 17402-2231
Phone(717) 845-1621
Fax(717) 854-6939
Sole ProprietorNo
Medical School CMSOtherGraduated 1975
Enumeration DateMay 19, 2006
Last NPPES UpdateOctober 22, 20263 updates tracked since enumeration
NPPES CertifiedOctober 22, 2026
✔ NPI 1801840608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in PA · MD037927E
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.
1693 S QUEEN ST, York, PA 17403
Open in Google Maps ↗

Secondary Practice Locations 7

Location 1845 Helen DrLebanon, PA 17042-7493 · Phone (717) 273-8835 · Fax (717) 202-0100
Location 21001 S George StYork, PA 17403-3676 · Phone (717) 851-2348
Location 31227 Baltimore StHanover, PA 17331-4406 · Phone (717) 633-1433 · Fax (717) 633-1838
Location 413515 Wolfe Rd Ste DNew Freedom, PA 17349-9346 · Phone (717) 812-2540 · Fax (717) 715-1310
Location 54222 Lincoln HwyYork, PA 17406-8083 · Phone (717) 812-7800 · Fax (717) 812-7811
Location 6450 S Washington StGettysburg, PA 17325-2500 · Phone (717) 337-4487
Location 71101 Edgar StYork, PA 17403-2862 · Phone (717) 812-4602

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

William M. Unwin 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 ID8123210408
PECOS Enrollment IDI20101005000509
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 Reassignments

2

Medicare enrollment records show William Unwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wellspan Medical Group
Same address
Gynecology
1693 S QUEEN ST
York, PA 17403
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,080 clinicians in this Medicare group
NPI 1265054308 (717) 356-5330
York Hospital
0.7 mi
Clinic/Center
1101 EDGAR ST, SUITE E
York, PA 17403
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 272 clinicians in this Medicare group
NPI 1609112036 (717) 812-4602

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.

Wellspan Good Samaritan Hospital

Acute Care Hospitals · Lebanon, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390066
Location252 South 4th StreetLebanon, PA 17042 · Lebanon County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17403 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
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
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 20

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

SUSAN M KOPINS RD, LDN
Dietitian, Registered
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
KATHERINE NICOLE PROWELL DO
Obstetrics & Gynecology
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
KATHRYN K. HASSINGER M.D.
Obstetrics & Gynecology
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
MS. LISA M. LEITZELL CRNP
Nurse Practitioner (Obstetrics & Gynecology)
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
MYRA JESSICA DELUCA CNM
Advanced Practice Midwife
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
REBECCA ANN RUBY DOMSIC CNM
Advanced Practice Midwife
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
ALYX NICOLE FUHRMAN CNM
Advanced Practice Midwife
1693 S QUEEN ST
YORK, PA 17403
York County (717) 845-1621
WELLSPAN MEDICAL GROUP
Obstetrics & Gynecology (Gynecology)
1693 S QUEEN ST
YORK, PA 17403
York County (717) 356-5330

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 William Unwin's NPI number?

The NPI number for William Unwin is 1801840608. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Where is William Unwin located?

William Unwin practices at 1693 S Queen St, York, PA 17403. The listed phone number is (717) 845-1621.

What is William Unwin's specialty?

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

Is William Unwin enrolled in Medicare?

Yes. William Unwin 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 organizations bill Medicare for William Unwin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Unwin reassigns Medicare benefits to 2 organizations: Wellspan Medical Group (York, PA) and York Hospital (York, PA). Each 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 William Unwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is William Unwin affiliated with any hospitals?

According to CMS data, William Unwin is affiliated with Wellspan Good Samaritan Hospital.

When was this NPI record last updated?

The NPPES record for William Unwin was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.