Doctor profile · Federal record
Dr. Holly Vanderwerff
Physician Assistant · Troy, MI
- NPI 1194195966
- Accepts Medicare
- 11 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4600 Investment Dr, Ste 300
Troy, MI 480986365
(248) 267-5000
fax (248) 267-5001
Credentials & registration
- NPI registered
- October 2015 — 11 yrs on file
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Michigan #5601007515
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194195966. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
279
Distinct HCPCS
8
Medicare allowed
$16,604
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 92 | 84 | $76 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 64 | 58 | $107 | |
36415 |
Insertion of needle into vein for collection of blood sample | 37 | 36 | $8 | |
17110 |
Destruction of skin growth, 1-14 growths | 20 | 20 | $97 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 20 | 19 | $7 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 18 | 18 | $3 | |
80048 |
Blood test, basic group of blood chemicals (calcium, total) | 15 | 14 | $8 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 13 | 13 | $16 |
In context: peer comparison
Among 61 peers in Troy Physician Assistant, average services per provider: 76. This provider delivers 3.7× the peer median.Open Payments
Industry payments received
All-time total
$1,872
Transactions
70
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 13 | $389.45 | |
| Amgen INC. | 10 | $286.92 | |
| Regeneron Healthcare Solutions, INC. | 5 | $205.03 | |
| Sun Pharmaceutical Industries INC. | 5 | $176.29 | |
| Abbvie INC. | 9 | $166.68 | |
| Incyte Corporation | 6 | $135.84 | |
| Novartis Pharmaceuticals Corporation | 6 | $127.08 | |
| Dermavant Sciences, INC. | 4 | $83.25 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $62.96 | |
| Arcutis Biotherapeutics, INC. | 3 | $51.62 | |
| Genzyme Corporation | 2 | $50.59 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $33.96 | |
| Alnylam Pharmaceuticals INC. | 1 | $28.34 | |
| Ortho Dermatologics, A Division of Bausch Health US, LLC | 1 | $23.93 | |
| Lilly USA, LLC | 1 | $22.40 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
471
Patients
272
Total drug cost
$44,805
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Triamcinolone Acetonide | Generic | 53 | 44 | $523 |
| Fluticasone Propionate | Generic | 52 | 44 | $1,202 |
| Clobetasol Propionate | Generic | 43 | 32 | $1,382 |
| Atorvastatin Calcium | Generic | 38 | 20 | $671 |
| Mupirocin | Generic | 36 | 32 | $282 |
| Fluorouracil | Generic | 33 | 30 | $2,014 |
| Omeprazole | Generic | 29 | 0 | $516 |
| Ammonium Lactate | Generic | 28 | 25 | $417 |
| Ozempic (Semaglutide) | Brand | 28 | 0 | $36,367 |
| Lisinopril | Generic | 27 | 0 | $327 |
Frequently asked questions
What is Dr. Holly Vanderwerff's medical specialty?
Dr. Holly Vanderwerff practices Physician Assistant in Troy, MI.
Where does Dr. Holly Vanderwerff practice?
Dr. Holly Vanderwerff practices at 4600 Investment Dr, Troy, MI 480986365. Office phone: 2482675000.
What is Dr. Holly Vanderwerff's NPI?
Dr. Holly Vanderwerff's National Provider Identifier (NPI) is 1194195966, issued by NPPES.
Does Dr. Holly Vanderwerff accept Medicare assignment?
Yes. Dr. Holly Vanderwerff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Holly Vanderwerff commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.