William Hartley Blakeslee , WILLIAM BLAKESLEE PA
Physician Assistant โข Kalamazoo, MI
601 John St, Box 74
Kalamazoo, MI 490075341
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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William Blakeslee is listed in NPPES under Physician Assistant.
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NPI assigned on August 22, 2007; this date does not establish years in practice.
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Published CMS data list 1,284 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.
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Published Part B service records, 2024:
- 99212 โ Established patient outpatient office visit: 411 service units.
- J1010 โ Injection, methylprednisolone acetate, 1 mg: 315 service units.
- 20553 โ Injection of trigger points, 3 or more muscles: 198 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
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Published CMS data list 2,077 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Gabapentin โ 384 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 296 prescription fills, including refills.
- Tramadol Hcl โ 236 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 26 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 104 clinicians with data). Median for this group: 159. Middle half: 87 to 246.
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,281 clinicians with data). Median for this group: 134. Middle half: 59 to 290.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,574 in 2020 to 1,284 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
601 John St
Box 74
Kalamazoo, MI 490075341
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: Kalamazoo Anesthesiology P C. 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
2007
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
239 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 $43,372 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 $30,012 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.
30-day fills
2,436 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$135,336 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $650.65 across 25 records.
By nature of payment
- Food and Beverage: $650.65 across 25 records.
Reporting-company totals (3 largest of 8)
- Pfizer Inc.: $189.51 across 5 records.
- Collegium Pharmaceutical, Inc.: $151.74 across 9 records.
- Eisai Inc.: $100.30 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
19 years (graduated 2007)
CMS Doctors and Clinicians data list 2007 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
2007
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)
William Blakeslee 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 William Blakeslee 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 Kalamazoo and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 104 clinicians with data). Median for this group: 159. Middle half: 87 to 246.
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,281 clinicians with data). Median for this group: 134. Middle half: 59 to 290.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 104 clinicians with data). Median for this group: $11,190. Middle half: $5,218 to $17,208.
A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,281 clinicians with data). Median for this group: $10,676. Middle half: $4,960 to $20,226.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 104 clinicians with data). Median for this group: $7,796. Middle half: $3,741 to $12,501.
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,281 clinicians with data). Median for this group: $7,770. Middle half: $3,621 to $14,890.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 107 clinicians with data). Median for this group: 339. Middle half: 123 to 932.
More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Michigan (2024, 3,741 clinicians with data). Median for this group: 302. Middle half: 82 to 1,061.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Kalamazoo, MI (2024, 107 clinicians with data). Median for this group: $13,730. Middle half: $1,232 to $142,440.
A higher Part D drug cost than 75% of clinicians listed under Physician Assistant in Michigan (2024, 3,741 clinicians with data). Median for this group: $6,107. Middle half: $669 to $117,415.
173 active clinicians are listed under Physician Assistant with a practice address in Kalamazoo, MI (6,989 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Kalamazoo
13.3% of these 173 clinicians have the CMS telehealth indicator.
76.9% of these 173 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.
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Medicare Part B services
Medicare Part B services decreased 18% from 1,574 in 2020 to 1,284 in 2024.
- 2020: 1,574
- 2021: 1,518
- 2022: 1,352
- 2023: 1,287
- 2024: 1,284
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Medicare-allowed amount
Medicare-allowed amount decreased 38% from $69,894 in 2020 to $43,372 in 2024.
- 2020: $69,894
- 2021: $71,867
- 2022: $60,095
- 2023: $49,408
- 2024: $43,372
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Paid by Medicare
Paid by Medicare decreased 39% from $49,491 in 2020 to $30,012 in 2024.
- 2020: $49,491
- 2021: $51,501
- 2022: $42,124
- 2023: $34,958
- 2024: $30,012
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 23% from 2,707 in 2020 to 2,077 in 2024.
- 2020: 2,707
- 2021: 2,470
- 2022: 2,362
- 2023: 2,277
- 2024: 2,077
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30-day fills
30-day fills decreased 19% from 3,015 in 2020 to 2,436 in 2024.
- 2020: 3,015
- 2021: 2,758
- 2022: 2,690
- 2023: 2,575
- 2024: 2,436
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Part D drug cost
Part D drug cost decreased 48% from $260,314 in 2020 to $135,336 in 2024.
- 2020: $260,314
- 2021: $227,302
- 2022: $220,928
- 2023: $215,375
- 2024: $135,336
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $548.33 in 2021 to $650.65 in 2025.
- 2021: $548.33
- 2022: $641.59
- 2023: $507.71
- 2024: $223.21
- 2025: $650.65
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): 25 records totaling $650.65.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $111.09 |
| Eisai Inc. |
Food and Beverage
Cash or cash equivalent
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Leqembi | General | $100.30 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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Senza | General | $32.70 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
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JOURNAVX | General | $26.44 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
OCTRODE | General | $24.59 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
|
JOURNAVX | General | $22.23 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $21.59 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $21.35 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $19.74 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $19.23 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $18.85 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $18.63 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $18.46 |
| Avanos Medical |
Food and Beverage
In-kind items and services
|
COOLIEF COOLED RADIOFREQUENCY | General | $18.45 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $18.28 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $17.85 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $17.69 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $17.27 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $17.11 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $17.07 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $16.79 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $16.79 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $15.15 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $12.87 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $10.13 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
|
99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
411 | 185 | $140.02 | $44.93 |
|
J1010
Injection, methylprednisolone acetate, 1 mg
|
315 | 63 | $9.63 | $0.13 |
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20553
Injection of trigger points, 3 or more muscles
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198 | 66 | $433.00 | $45.48 |
|
J1030
Injection, methylprednisolone acetate, 40 mg
|
153 | 57 | $16.01 | $5.44 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
81 | 69 | $140.00 | $72.93 |
|
64405
Injection of anesthetic agent and/or steroid into upper neck and back of head nerve
|
54 | 14 | $1431.06 | $92.24 |
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20552
Injection of trigger points, 1-2 muscles
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46 | 30 | $433.00 | $42.93 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
15 | 14 | $420.00 | $100.89 |
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99202
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
|
11 | 11 | $420.00 | $59.18 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 384 | 15,562 | $6,618.13 | 102 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 296 | 8,038 | $5,061.80 | 47 |
| Tramadol Hcl | Tramadol Hcl | 236 | 6,782 | $1,900.73 | 53 |
| Pregabalin | Pregabalin | 151 | 6,246 | $8,488.25 | 45 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 138 | 3,974 | $2,319.42 | 22 |
| Duloxetine Hcl | Duloxetine Hcl | 106 | 5,059 | $2,632.62 | 30 |
| Methadone Hcl | Methadone Hcl | 76 | 2,247 | $1,191.18 | โ |
| Morphine Sulfate Er | Morphine Sulfate | 75 | 2,220 | $2,062.43 | โ |
| Fentanyl | Fentanyl | 74 | 2,304 | $9,474.89 | โ |
| Tramadol Hcl Er | Tramadol Hcl | 58 | 1,710 | $4,225.87 | โ |
| Buprenorphine | Buprenorphine | 54 | 1,512 | $10,830.23 | โ |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 50 | 1,515 | $183.02 | 12 |
| Diclofenac Sodium | Diclofenac Sodium | 44 | 1,364 | $1,183.47 | 13 |
| Celecoxib | Celecoxib | 42 | 1,968 | $768.36 | 14 |
| Tizanidine Hcl | Tizanidine Hcl | 41 | 1,360 | $245.18 | 15 |
| Oxycodone Hcl | Oxycodone Hcl | 40 | 1,146 | $880.49 | โ |
| Ropinirole Hcl | Ropinirole Hcl | 35 | 1,216 | $447.93 | โ |
| Oxycontin | Oxycodone Hcl | 33 | 990 | $43,988.63 | โ |
| Ibuprofen | Ibuprofen | 28 | 930 | $300.02 | โ |
| Amitriptyline Hcl | Amitriptyline Hcl | 24 | 960 | $251.44 | โ |
| Naloxone Hcl | Naloxone Hcl | 22 | 388 | $1,526.16 | 22 |
| Belbuca | Buprenorphine Hcl | 22 | 642 | $20,379.25 | โ |
| Morphine Sulfate | Morphine Sulfate | 14 | 390 | $274.33 | โ |
| Lidocaine-Prilocaine | Lidocaine/Prilocaine | 12 | 330 | $1,192.61 | โ |
| Topiramate | Topiramate | 11 | 510 | $200.53 | โ |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20080112000031
MI
4183705494
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
Kalamazoo Anesthesiology P C
7920 Kirkland Ct, Portage, MI 490244974
Phone: 2693450669
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Sleep Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated August 22, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Physician Assistants in Kalamazoo
- Nicholas Lapenna
- Courtney Drake, PA
- Jamilah Racine, PA-C
- Helena Puhalj, PA-C
- Rachel Newhouse, PA-C
- Sean O'neill, PA-C
Mailing Address
601 John St, Box 74
Kalamazoo, MI 490075341
Phone: 2693418481