Mark F Gillette , PA-C
Physician Assistant • Grand Rapids, MI
3355 Eagle Park Dr Ne, Suite 103
Grand Rapids, MI 495257004
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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NPI assigned on March 24, 2008; this date does not establish years in practice.
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Published CMS data list 773 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 321 service units.
- 99308 — Subsequent nursing facility care with straightforward level of medical decision making, per day: 186 service units.
- 99348 — Residence visit for established patient with low level of medical decision making, per day: 131 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 7 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 6,934 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 363 prescription fills, including refills.
- Levothyroxine Sodium — 359 prescription fills, including refills.
- Omeprazole — 268 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 140 records in the table · 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 Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: 99. Middle half: 54 to 189.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: 134. Middle half: 59 to 292.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,487 in 2020 to 773 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
3355 Eagle Park Dr Ne
Suite 103
Grand Rapids, MI 495257004
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: Age Management Of West Michigan Pc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
1994
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
267 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 – by Provider, 2024.
Medicare-allowed amount
About $59,399 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 – by Provider and Service, 2024.
Paid by Medicare
About $38,353 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 – by Provider and Service, 2024.
30-day fills
7,596 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
$344,881 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $576.72 across 12 records.
By nature of payment
- Food and Beverage: $465.23 across 11 records.
- Education: $111.49 across 1 record.
Reporting-company totals
- Teva Pharmaceuticals USA, Inc.: $413.57 across 9 records.
- Neurocrine BioSciences, Inc.: $147.96 across 2 records.
- Otsuka America Pharmaceutical, Inc.: $15.19 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
32 years (graduated 1994)
CMS Doctors and Clinicians data list 1994 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, CMS release of October 2, 2026.
NPI first issued
2008
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, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Mark Gillette 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 Mark Gillette 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 Grand Rapids 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 Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: 99. Middle half: 54 to 189.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: 134. Middle half: 59 to 292.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: $8,307. Middle half: $4,357 to $15,061.
A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: $10,685. Middle half: $4,963 to $20,340.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: $6,056. Middle half: $3,195 to $11,498.
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: $7,786. Middle half: $3,622 to $14,974.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 458 clinicians with data). Median for this group: 249. Middle half: 78 to 846.
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,756 clinicians with data). Median for this group: 301. Middle half: 83 to 1,058.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 458 clinicians with data). Median for this group: $6,395. Middle half: $739 to $86,811.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Michigan (2024, 3,756 clinicians with data). Median for this group: $6,017. Middle half: $670 to $116,880.
931 active clinicians are listed under Physician Assistant with a practice address in Grand Rapids, MI (7,169 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Grand Rapids
18.2% of these 931 clinicians have the CMS telehealth indicator.
70.6% of these 931 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 69% from 2,487 in 2020 to 773 in 2024.
- 2020: 2,487
- 2021: 2,031
- 2022: 1,540
- 2023: 1,343
- 2024: 773
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Medicare-allowed amount
Medicare-allowed amount decreased 74% from $228,697 in 2020 to $59,399 in 2024.
- 2020: $228,697
- 2021: $183,706
- 2022: $141,523
- 2023: $113,846
- 2024: $59,399
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Paid by Medicare
Paid by Medicare decreased 77% from $169,828 in 2020 to $38,353 in 2024.
- 2020: $169,828
- 2021: $134,590
- 2022: $102,888
- 2023: $81,828
- 2024: $38,353
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 31% from 10,037 in 2020 to 6,934 in 2024.
- 2020: 10,037
- 2021: 11,606
- 2022: 13,098
- 2023: 12,830
- 2024: 6,934
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30-day fills
30-day fills decreased 31% from 11,032 in 2020 to 7,596 in 2024.
- 2020: 11,032
- 2021: 12,880
- 2022: 14,322
- 2023: 14,082
- 2024: 7,596
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Part D drug cost
Part D drug cost decreased 45% from $622,701 in 2020 to $344,881 in 2024.
- 2020: $622,701
- 2021: $734,469
- 2022: $725,054
- 2023: $694,303
- 2024: $344,881
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $236.16 in 2021 to $576.72 in 2025.
- 2021: $236.16
- 2023: $124.99
- 2024: $239.57
- 2025: $576.72
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 – December 31, 2025): 12 records totaling $576.72.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $122.13 |
| Teva Pharmaceuticals USA, Inc. |
Education
In-kind items and services
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— | General | $111.49 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $101.45 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $98.98 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $35.09 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $27.79 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $25.83 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $20.64 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $17.24 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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REXULTI | General | $15.19 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $0.47 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $0.42 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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321 | 87 | $180.00 | $87.13 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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186 | 56 | $120.00 | $60.19 |
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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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131 | 104 | $115.00 | $61.92 |
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99349
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
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91 | 82 | $191.00 | $102.90 |
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G0179
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a
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19 | 15 | $62.00 | $33.20 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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13 | 11 | $220.00 | $124.56 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
|
12 | 12 | $80.00 | $42.45 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 363 | 11,851 | $4,591.71 | 68 |
| Levothyroxine Sodium | Levothyroxine Sodium | 359 | 12,009 | $4,313.95 | 66 |
| Omeprazole | Omeprazole | 268 | 8,481 | $2,748.77 | 45 |
| Furosemide | Furosemide | 228 | 8,031 | $1,300.51 | 50 |
| Lisinopril | Lisinopril | 223 | 6,938 | $1,853.91 | 46 |
| Trazodone Hcl | Trazodone Hcl | 185 | 5,561 | $1,939.70 | 34 |
| Quetiapine Fumarate | Quetiapine Fumarate | 182 | 5,394 | $3,298.82 | 28 |
| Eliquis | Apixaban | 166 | 5,123 | $103,549.52 | 26 |
| Potassium Chloride | Potassium Chloride | 162 | 5,396 | $3,053.44 | 34 |
| Amlodipine Besylate | Amlodipine Besylate | 160 | 5,441 | $1,252.51 | 30 |
| Metformin Hcl | Metformin Hcl | 155 | 5,444 | $1,842.59 | 31 |
| Fluticasone Propionate | Fluticasone Propionate | 149 | 4,570 | $3,181.06 | 34 |
| Pantoprazole Sodium | Pantoprazole Sodium | 125 | 4,071 | $1,476.09 | 23 |
| Metoprolol Succinate | Metoprolol Succinate | 110 | 4,135 | $2,317.66 | 23 |
| Tamsulosin Hcl | Tamsulosin Hcl | 105 | 3,138 | $1,989.29 | 17 |
| Famotidine | Famotidine | 102 | 3,198 | $3,774.32 | 21 |
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 101 | 2,758 | $1,044.51 | 18 |
| Tramadol Hcl | Tramadol Hcl | 88 | 2,255 | $1,258.29 | 26 |
| Donepezil Hcl | Donepezil Hcl | 86 | 2,788 | $1,037.51 | 16 |
| Escitalopram Oxalate | Escitalopram Oxalate | 85 | 2,412 | $807.04 | 20 |
| Gabapentin | Gabapentin | 81 | 2,174 | $1,508.15 | 25 |
| Losartan Potassium | Losartan Potassium | 81 | 2,993 | $971.16 | 19 |
| Simvastatin | Simvastatin | 80 | 2,913 | $689.19 | 15 |
| Metoprolol Tartrate | Metoprolol Tartrate | 77 | 2,415 | $399.25 | 12 |
| Hydrochlorothiazide | Hydrochlorothiazide | 74 | 2,318 | $430.84 | 14 |
(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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20080501000451
MI
3375622350
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, CMS release of October 2, 2026
Age Management Of West Michigan Pc
1959 E Paris Ave Se, Grand Rapids, MI 495466272
Phone: 6168082695
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 Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Nurse Practitioner
Nurse Practitioner - Family
Nurse Practitioner (Certified)
Career & Practice History
NPI enumerated March 24, 2008.
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 November 2026.
NPI Administrative Meta
Other Physician Assistants in Grand Rapids
- Brittany Weeda, PA-C
- Madeline Vaughn, PA-C
- Margaret Lesnefsky, PA-C
- Megan Shelby, PA-C
- Gregory Helmers, PA
- Sarah Harper, PA-C
More public profiles in Michigan
Directory navigation, in NPI number order.
- Ewa Porter Family Medicine · Alma
- Summer Hunter, NP Nurse Practitioner - Acute Care · Fenton
- Hannah Smith, MD Student in an Organized Health Care Education/Training Program · Detroit
- Afoma Anyadibe, MD Internal Medicine - Hematology & Oncology · Royal Oak
- Laycie Lafler Nurse Anesthetist, Certified Registered · Kalamazoo
- Daniel Antonoff, DO Student in an Organized Health Care Education/Training Program · Lansing
- Simarjeet Puri, MD Student in an Organized Health Care Education/Training Program · Novi
- Christopher Cunningham Student in an Organized Health Care Education/Training Program · Detroit
- Jacob Applegarth, MD Surgery · Royal Oak
- Andy Li, FNP-C Nurse Practitioner - Family · Pontiac
- Sara Tran, PA-C Physician Assistant - Medical · Royal Oak
- Kara Griffin, PA-C Physician Assistant · Ann Arbor
Mailing Address
Po Box 1239
Troy, MI 480991239
Phone: 2488246600