Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. William Hartley Blakeslee III, WILLIAMBLAKESLEEPA

Individual provider Physician Assistant · NPI 1306039490

Mr. William Hartley Blakeslee III, WILLIAMBLAKESLEEPA is a Physician Assistant in Kalamazoo, Michigan. Qualified in 2007, 19 years ago. Practices with Kalamazoo Anesthesiology P C, a 134-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
19
Licensed in
MI
In the registry since
2007
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

601 John St Box 74
Kalamazoo, MI 49007-5341 Not confirmed with CMS for 11 years — call before visiting
Phone: (269) 341-8481
Fax: (269) 341-7781
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 5601005112 (MI)

Record details

NPI number1306039490
Entity typeIndividual (Type 1)
GenderMale
Credentials WILLIAMBLAKESLEEPA
Sole proprietorNo
NPI enumeratedAugust 22, 2007
Last updated in NPPESOctober 31, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Kalamazoo Anesthesiology P C — 134 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients239
Services billed 1,298 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $651 25 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Kalamazoo Anesthesiology P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 134 clinicians in the practice; 12 are shown here.

Other providers in Kalamazoo