Dr. William Robert Perry , MD
Pathology - Anatomic Pathology โข Ann Arbor, MI
1500 E Medical Center Dr
Ann Arbor, MI 481095000
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. William Perry is listed in NPPES under Pathology - Anatomic Pathology.
-
NPI assigned on May 29, 2018; this date does not establish years in practice.
-
Published CMS data list 663 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 88305 โ Pathology examination of tissue using a microscope, intermediate complexity: 223 service units.
- 88341 โ Special stained specimen slides to examine tissue, each additional procedure: 91 service units.
- 88321 โ Surgical pathology consultation and report on referred slides prepared elsewhere: 88 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 9 records in the table ยท Guide: How to read Medicare Part B data
-
Close to the middle for Medicare Part B services among clinicians listed under Pathology - Anatomic Pathology in Ann Arbor, MI (2024, 38 clinicians with data). Median for this group: 848. Middle half: 333 to 1,249.
Fewer Medicare Part B services than 65% of clinicians listed under Pathology - Anatomic Pathology in Michigan (2024, 57 clinicians with data). Median for this group: 966. Middle half: 417 to 1,448.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 15 in 2022 to 663 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022โ2024.
Practice Location & Contact Primary Location
1500 E Medical Center Dr
Ann Arbor, MI 481095000
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Regents Of The University Of Michigan. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Wayne State University School Of Medicine
2018
What Public CMS Data Show
Pathology - Anatomic Pathology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
281 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $29,455 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $23,264 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2018
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Perry has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Perry as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Ann Arbor and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Ann Arbor, MI (2024, 38 clinicians with data). Median for this group: 848. Middle half: 333 to 1,249.
Fewer Medicare Part B services than 65% of clinicians listed under Pathology - Anatomic Pathology in Michigan (2024, 57 clinicians with data). Median for this group: 966. Middle half: 417 to 1,448.
Medicare-allowed amount
Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Ann Arbor, MI (2024, 38 clinicians with data). Median for this group: $34,932. Middle half: $9,885 to $48,570.
A lower Medicare-allowed amount than 60% of clinicians listed under Pathology - Anatomic Pathology in Michigan (2024, 57 clinicians with data). Median for this group: $37,290. Middle half: $21,265 to $52,841.
Paid by Medicare
Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Ann Arbor, MI (2024, 38 clinicians with data). Median for this group: $27,383. Middle half: $7,575 to $37,132.
A lower Medicare payment amount than 60% of clinicians listed under Pathology - Anatomic Pathology in Michigan (2024, 57 clinicians with data). Median for this group: $29,086. Middle half: $16,612 to $39,443.
76 active clinicians are listed under Pathology - Anatomic Pathology with a practice address in Ann Arbor, MI (106 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Ann Arbor
0% of these 76 clinicians have the CMS telehealth indicator.
55.3% of these 76 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services went from 15 in 2022 to 663 in 2024.
- 2022: 15
- 2023: 263
- 2024: 663
-
Medicare-allowed amount
Medicare-allowed amount increased 2222% from $1,269 in 2022 to $29,455 in 2024.
- 2022: $1,269
- 2023: $14,936
- 2024: $29,455
-
Paid by Medicare
Paid by Medicare increased 2201% from $1,011 in 2022 to $23,264 in 2024.
- 2022: $1,011
- 2023: $11,652
- 2024: $23,264
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2022โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
88305
Pathology examination of tissue using a microscope, intermediate complexity
|
223 | 113 | $266.00 | $35.29 |
|
88341
Special stained specimen slides to examine tissue, each additional procedure
|
91 | 31 | $132.00 | $26.71 |
|
88321
Surgical pathology consultation and report on referred slides prepared elsewhere
|
88 | 87 | $394.88 | $81.42 |
|
88307
Pathology examination of tissue using a microscope, moderately high complexity
|
74 | 33 | $473.00 | $74.66 |
|
88331
Pathology examination of specimen during surgery, first tissue block
|
72 | 23 | $260.00 | $58.35 |
|
88300
Pathology examination of tissue using a microscope, limited examination
|
45 | 44 | $52.00 | $4.49 |
|
88342
Special stained specimen slides to examine tissue, initial procedure
|
41 | 40 | $182.00 | $33.24 |
|
88311
Preparation of tissue for examination by removing any calcium present
|
16 | 15 | $76.00 | $11.66 |
|
88360
Microscopic genetic analysis of tumor, manual
|
13 | 12 | $258.00 | $39.37 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-07-19NUCC Taxonomy Code: 207ZP0101X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PATHOLOGY
I20220725001821
MI
3870844806
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Regents Of The University Of Michigan
1500 E Medical Ctr Dr 1st Fl, Ann Arbor, MI 481095000
Phone: 7349364185
Regents Of The University Of Michigan
1500 E Medical Ctr Dr 1st Fl Rec D, Ann Arbor, MI 481095000
Phone: 7347645175
Regents Of The University Of Michigan
2800 Plymouth Rd, Ann Arbor, MI 481092800
Phone: 7349364000
Regents Of The University Of Michigan
1500 E Medical Ctr Dr 3rd Fl Taubma, Ann Arbor, MI 481095000
Phone: 7346477321
Regents Of The University Of Michigan
1500 E Medical Ctr Dr 1st Fl Rec F, Ann Arbor, MI 481095000
Phone: 7347645176
Regents Of The University Of Michigan
1500 E Medical Ctr Dr, Ann Arbor, MI 481095000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Rheumatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI 481095000 (Tel: 7349364000)
Registered at 3621 S STATE ST, ANN ARBOR, MI 481081633 (Tel: 7346475299)
Pathology (license number reported to NPPES: MI 4301505983)
NPI status registered as active in NPPES database
Registered at 1301 CATHERINE STREET, 5231E MED SCI I, ANN ARBOR, MI 481095602 (Tel: 7347643270)
Registered at 1301 CATHERINE STREET, 5231E MED SCI I, ANN ARBOR, MI 481095602 (Tel: 7347643270)
Recorded as WILLIAM PERRY, MD
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: MI 4301114812)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Pathology - Anatomic Pathology Specialists in Ann Arbor
- Dr. Anamarija Perry, MD
- Dr. Cathryn Lapedis, MD
- Dr. Charles Parkos, MD, PhD
- Dr. Martin Ishikawa, MD
- Dr. Kathryn Gibbons, MD
- Dr. Jonathan Mowers, MD, PhD
Mailing Address
3621 S State St
Ann Arbor, MI 481081633
Phone: 7346475299