Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Zoe Woltjer , PA-C

Physician Assistant • Owosso, MI

Active NPI 1306411897 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

200 Health Park Dr
Owosso, MI 488671291

Call 9897238666 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

200 Health Park Dr

Owosso, MI 488671291

Telephone 9897238666
Fax 9897251434
Organization at the Same NPPES Address or Phone
Owosso Medical Group, Pc Facility NPI 1518119031

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Memorial Hospital. 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

Graduation Year

2020

Medicare patients

238 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $45,614 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.

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 $30,905 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

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

741 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

$520,383 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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: $1,665.30 across 70 records.

By nature of payment

  • Food and Beverage: $1,298.37 across 66 records.
  • Education: $366.93 across 4 records.

Reporting-company totals (3 largest of 23)

  • Janssen Pharmaceuticals, Inc: $392.19 across 16 records.
  • SUN PHARMACEUTICAL INDUSTRIES INC.: $352.85 across 7 records.
  • ABBVIE INC.: $155.76 across 11 records.

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.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

6 years (graduated 2020)

CMS Doctors and Clinicians data list 2020 as the year this clinician finished professional 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

2021

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.

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, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Zoe Woltjer 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Zoe Woltjer 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Owosso 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 Owosso, MI (2024, 18 clinicians with data). Median for this group: 165. Middle half: 85 to 252.

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 90% of clinicians listed under Physician Assistant in Owosso, MI (2024, 18 clinicians with data). Median for this group: $12,329. Middle half: $7,023 to $17,847.

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 90% of clinicians listed under Physician Assistant in Owosso, MI (2024, 18 clinicians with data). Median for this group: $8,580. Middle half: $5,118 to $12,637.

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 65% of clinicians listed under Physician Assistant in Owosso, MI (2024, 16 clinicians with data). Median for this group: 212. Middle half: 137 to 860.

More Part D prescriptions than 65% 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 90% of clinicians listed under Physician Assistant in Owosso, MI (2024, 16 clinicians with data). Median for this group: $8,209. Middle half: $808 to $150,338.

A higher Part D drug cost than 90% 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.

26 active clinicians are listed under Physician Assistant with a practice address in Owosso, MI (6,989 in Michigan).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Owosso

11.5% of these 26 clinicians have the CMS telehealth indicator.

80.8% of these 26 clinicians are listed by CMS as accepting Medicare assignment.

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 · 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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 70 records totaling $1,665.30.

Manufacturer Payment Nature Product Type Amount ($)
SUN PHARMACEUTICAL INDUSTRIES INC.
Food and Beverage
In-kind items and services
ILUMYA General $100.80
SUN PHARMACEUTICAL INDUSTRIES INC.
Food and Beverage
In-kind items and services
ILUMYA General $100.80
Janssen Pharmaceuticals, Inc
Education
In-kind items and services
TREMFYA General $99.99
Janssen Pharmaceuticals, Inc
Education
In-kind items and services
TREMFYA General $99.99
SUN PHARMACEUTICAL INDUSTRIES INC.
Education
In-kind items and services
— General $99.96
Bristol Myers Squibb Company
Education
In-kind items and services
Sotyktu General $66.99
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $33.85
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $32.64
UCB, Inc.
Food and Beverage
In-kind items and services
Bimzelx General $29.39
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $27.88
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
BREZTRI General $27.13
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $27.11
UCB, Inc.
Food and Beverage
In-kind items and services
Bimzelx General $26.93
Baxter Healthcare
Food and Beverage
In-kind items and services
Hillrom - Vest System Model 105 Home Care General $25.45
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $25.16
Viatris Specialty LLC
Food and Beverage
In-kind items and services
YUPELRI General $25.00
SUN PHARMACEUTICAL INDUSTRIES INC.
Food and Beverage
In-kind items and services
ILUMYA General $25.00
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $24.76
ABBVIE INC.
Food and Beverage
In-kind items and services
SKYRIZI General $23.48
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $22.11
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Food and Beverage
In-kind items and services
CAPLYTA General $22.04
Takeda Pharmaceuticals U.S.A., Inc.
Food and Beverage
In-kind items and services
GLASSIA General $20.94
VERTEX PHARMACEUTICALS INCORPORATED
Food and Beverage
In-kind items and services
JOURNAVX General $20.86
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $20.78
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $20.74

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020–2023 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, 2021–2024; 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
17003 Destruction of precancer skin growth, 2-14 growths
481 74 $7.49 $3.30
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
184 125 $122.54 $61.78
17000 Destruction of precancer skin growth, 1 growth
134 93 $93.93 $43.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
120 95 $205.45 $94.69
17110 Destruction of skin growth, 1-14 growths
86 57 $138.22 $68.99
11102 Biopsy of related skin growth, first growth
44 38 $118.80 $53.16
17004 Destruction of precancer skin growth, 15 or more growths
24 12 $204.25 $103.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
21 21 $294.71 $130.73
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
20 19 $88.20 $39.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
16 16 $158.50 $69.98

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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Ketoconazole Ketoconazole 147 3,834 $2,302.90 74
Clobetasol Propionate Clobetasol Propionate 100 2,949 $2,585.64 48
Triamcinolone Acetonide Triamcinolone Acetonide 85 2,540 $442.90 53
Betamethasone Dipropionate Betamethasone Dipropionate 67 1,783 $2,500.17 33
Clindamycin Phosphate Clindamycin Phosphate 45 1,362 $1,425.99 19
Mupirocin Mupirocin 40 1,000 $325.63 24
Doxycycline Hyclate Doxycycline Hyclate 27 1,042 $536.89 —
Otezla Apremilast 27 808 $104,947.24 —
Metronidazole Metronidazole 26 965 $1,128.69 14
Hydrocortisone Hydrocortisone 26 585 $111.82 19
Dupixent Pen Dupilumab 26 714 $95,787.98 —
Fluconazole Fluconazole 24 840 $129.12 —
Minocycline Hcl Minocycline Hcl 19 582 $409.33 —
Cosentyx Sensoready (2 Pens) Secukinumab 18 504 $131,389.26 —
Cosentyx Unoready Pen Secukinumab 15 420 $176,358.96 —

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

Self-certified to NPPES: 2021-05-26
Physician Assistant Primary Specialty

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Michigan Department of Licensing and Regulatory Affairs.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20210811000949

Enrollment State Jurisdiction

MI

PECOS Control ID

7618371741

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

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

Memorial Hospital

826 W King St, Owosso, MI 488672120

Memorial Hospital

200 Health Park Dr, Owosso, MI 488671291

Phone: 9897238666

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

6 listed
Dr. Azmy Allam , MD

Internal Medicine

NPI 1285603027

Doctor of Medicine (M.D.)

NPI 1326781220

Doctor of Medicine (M.D.)

Iman Chamas , PA-C

Physician Assistant

NPI 1821544081

Physician Assistant (Certified)

Heather Gaudard , FNP-C

Nurse Practitioner

NPI 1225524903

Family Nurse Practitioner (Certified)

Dr. Margaret Purdy , MD

Internal Medicine

NPI 1366411100

Doctor of Medicine (M.D.)

Mallorie Skinner , FNP-BC

Nurse Practitioner - Family

NPI 1154920239

Family Nurse Practitioner (Board Certified)

Career & Practice History

NPI enumerated May 26, 2021.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from June 2021 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1306411897
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 26, 2021
Last Update: May 26, 2021
Sole Proprietor: No

Other Physician Assistants in Owosso

All Physician Assistants in Owosso

Mailing Address

200 Health Park Dr

Owosso, MI 488671291

Phone: 9897238666

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.