WILLIAM HENRY WISMER DO
NPI 1346292406
Internal Medicine - Gastroenterology in Erie, PA
About William Henry Wismer Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM HENRY WISMER DO (NPI 1346292406) is an individual gastroenterology provider in Erie, Pennsylvania, licensed in Pennsylvania (OS-011918) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Meadville Medical Center, and maintains a secondary practice location in Corry.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted 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
William Henry Wismer Do 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.
Medicare Billing Reassignments
3Medicare enrollment records show William Wismer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Erie, PA 16508
- Reassigned Medicare billing, Pennsylvania enrollment
- 69 clinicians in this Medicare group
Corry, PA 16407
- Reassigned Medicare billing, Pennsylvania enrollment
- Also billed through NPI 1841268877 (Pennsylvania), NPI 1124406376 (Pennsylvania)
- 29 clinicians in this Medicare group
Warren, PA 16365
- Reassigned Medicare billing, Pennsylvania enrollment
- 40 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Meadville Medical Center
Acute Care Hospitals · Meadville, PAWarren General Hospital
Acute Care Hospitals · Warren, PAMillcreek Community Hospital
Acute Care Hospitals · Erie, PALecom Health Corry Memorial Hospital
Critical Access Hospitals · Corry, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 16508 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
ERIE, PA 16508
ERIE, PA 16508
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 Wismer's NPI number?
The NPI number for William Wismer is 1346292406. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is William Wismer located?
William Wismer practices at 2010 W 38th St Uppr Level, Erie, PA 16508. The listed phone number is (814) 866-3986.
What is William Wismer's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is William Wismer enrolled in Medicare?
Yes. William Wismer 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 Wismer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Wismer reassigns Medicare benefits to 3 organizations: Medical Associates Of Erie (Erie, PA), Corry Memorial Hospital Association (Corry, PA) and Warren General Hospital (Warren, 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 Wismer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Wismer accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list William Wismer 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 William Wismer affiliated with any hospitals?
According to CMS data, William Wismer is affiliated with Meadville Medical Center, Warren General Hospital, Millcreek Community Hospital and Lecom Health Corry Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Wismer was last updated on May 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# William Henry Wismer, DO · NPI 1346292406
Gastroenterology physician in Erie, Pennsylvania. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1346292406 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** OS-011918 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 2010 W 38TH ST UPPR LEVEL, Erie, PA 16508-2004
- **Phone:** (814) 866-3986 · **Fax:** (814) 866-6837
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Medical Associates Of Erie (NPI 1104944677, Erie, PA); Corry Memorial Hospital Association (NPI 1518411677, Corry, PA); Warren General Hospital (NPI 1508803701, Warren, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie College Of Osteopathic Medicine, Erie, class of 2000
## Record status
- **NPPES last updated:** May 4, 2023
- **Other identifiers:** Medicaid 1016247190001 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1346292406) · Data from the CMS NPPES public registry.