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WILLIAM R WEISBURGER M.D.
NPI 1518031897
Pathology - Anatomic Pathology & Clinical Pathology in Annapolis, MD

Active since November 20, 2006PECOS Enrolled
2001 MEDICAL PKWY, ANNAPOLIS, MD 21401(443) 481-4250 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About William R Weisburger M.d. NPPES

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

WILLIAM R WEISBURGER M.D. (NPI 1518031897) is an individual anatomic pathology & clinical pathology provider in Annapolis, Maryland, licensed in Maryland (D17160) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1518031897
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameWILLIAM R WEISBURGERCredential: M.D.
Location Address2001 MEDICAL PKWYAnnapolis, MD 21401-3280
Mailing Address2001 Medical PkwyAnnapolis, MD 21401-3280 · (443) 481-4250
Phone(443) 481-4250
Sole ProprietorNo
Enumeration DateNovember 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1518031897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in MD · D17160
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
2001 MEDICAL PKWY, Annapolis, MD 21401
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Other Identifiers 4

Medicare ID-Type Unspecified166P389G
Other64842101MD · Blue Shield
Medicare UPINE16642
OtherN1540001DC · Ghi

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William R Weisburger M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Weisburger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Annapolis Regional Pathology Services, LLC
Same address
Anatomic Pathology & Clinical Pathology
2001 MEDICAL PARKWAY, ATTN: DR. SANFORD ROBBINS DEPT. OF PATHOLOGY
Annapolis, MD 21401
  • Reassigned Medicare billing, Maryland enrollment
  • 6 clinicians in this Medicare group
NPI 1194184515 (443) 481-4252
Anne Arundel Pathology Services, LLC
Same address
Anatomic Pathology & Clinical Pathology
2001 MEDICAL PKWY
Annapolis, MD 21401
  • Reassigned Medicare billing, Maryland enrollment
  • 6 clinicians in this Medicare group
NPI 1821162181 (443) 481-4250

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21401 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Reported Quality Measures

Quantitative Immunohistochemical (IHC) Evaluation of Human Epidermal Growth Factor Receptor 2 Testing (HER2) for Breast Cancer Patients
This is a measure based on whether quantitative evaluation of Human Epidermal Growth Factor Receptor 2 Testing (HER2) by immunohistochemistry (IHC) uses the system recommended in the current ASCO/CAP Guidelines for Human Epidermal Growth Factor Receptor 2…
100%30 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

GASHAW ADUGNA M.D
Internal Medicine
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (240) 495-4189
DR. VANESSA MONSALVE-GOMEZ MD
Student in an Organized Health Care Education/Training Program
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-5543
HEATHER ZACK
General Acute Care Hospital
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 927-6383
SARAH LYNN HERN LCSW-C
Counselor (Mental Health)
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-1272
RIYO RAJAN PHARMD
Pharmacist (Oncology)
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-4157
DIMENSIONS HEALTHCARE ASSOCIATES INC
Obstetrics & Gynecology
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-1000
ERIC HADHAZY
Student in an Organized Health Care Education/Training Program
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-4142
ANNE ARUNDEL MEDICAL CENTER
General Acute Care Hospital
2001 MEDICAL PKWY
ANNAPOLIS, MD 21401
Anne Arundel County (443) 481-1000

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 Weisburger's NPI number?

The NPI number for William Weisburger is 1518031897. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is William Weisburger located?

William Weisburger practices at 2001 Medical Pkwy, Annapolis, MD 21401. The listed phone number is (443) 481-4250.

What is William Weisburger's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is William Weisburger enrolled in Medicare?

Yes. William Weisburger is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Weisburger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Weisburger reassigns Medicare benefits to 2 organizations: Annapolis Regional Pathology Services, LLC (Annapolis, MD) and Anne Arundel Pathology Services, LLC (Annapolis, MD). 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 Weisburger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Weisburger was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.