William R Marshall , NP
Nurse Practitioner • Savannah, GA
900 Mohawk Street, Ste E
Savannah, GA 31419
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 Marshall is listed in NPPES under Nurse Practitioner.
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NPI assigned on June 23, 2006; this date does not establish years in practice.
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Published CMS data list 187 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 99214 — Established patient outpatient office visit: 77 service units.
- 99213 — Established patient outpatient office visit: 49 service units.
- 11102 — Biopsy of related skin growth, first growth: 31 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 355 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Triamcinolone Acetonide — 91 prescription fills, including refills.
- Clobetasol Propionate — 53 prescription fills, including refills.
- Dupixent Pen (Dupilumab) — 36 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 12 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 922 in 2018 to 187 in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2022.
Practice Location & Contact Primary Location
900 Mohawk Street
Ste E
Savannah, GA 31419
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: Chatham Skin And Cancer Center. 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
2000
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $17,569 in 2022
The total amount Medicare approved for these services in 2022. 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, 2022.
Paid by Medicare
About $9,395 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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, 2022.
30-day fills
426 standardized 30-day fills in 2022
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
$202,121 in 2022
The total cost of these prescriptions in 2022, 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, 2022.
Open Payments general payments, program year 2025
All general payments: $604.33 across 26 records.
By nature of payment
- Food and Beverage: $532.33 across 25 records.
- Education: $72.00 across 1 record.
Reporting-company totals (3 largest of 12)
- Janssen Pharmaceuticals, Inc: $154.91 across 6 records.
- Pfizer Inc.: $82.11 across 4 records.
- ABBVIE INC.: $77.06 across 4 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
26 years (graduated 2000)
CMS Doctors and Clinicians data list 2000 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
2006
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, “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.
Enrolled in Medicare (PECOS)
William Marshall 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 Marshall 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 Savannah and Georgia
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for William Marshall are from 2022.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for William Marshall are from 2022.
139 active clinicians are listed under Nurse Practitioner with a practice address in Savannah, GA (3,110 in Georgia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Savannah
8.6% of these 139 clinicians have the CMS telehealth indicator.
52.5% of these 139 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 80% from 922 in 2018 to 187 in 2022.
- 2018: 922
- 2019: 727
- 2020: 685
- 2021: 541
- 2022: 187
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Medicare-allowed amount
Medicare-allowed amount decreased 74% from $67,583 in 2018 to $17,569 in 2022.
- 2018: $67,583
- 2019: $59,414
- 2020: $57,901
- 2021: $45,071
- 2022: $17,569
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Paid by Medicare
Paid by Medicare decreased 80% from $47,878 in 2018 to $9,395 in 2022.
- 2018: $47,878
- 2019: $41,755
- 2020: $38,926
- 2021: $30,410
- 2022: $9,395
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 38% from 568 in 2018 to 355 in 2022.
- 2018: 568
- 2019: 667
- 2020: 641
- 2021: 794
- 2022: 355
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30-day fills
30-day fills decreased 29% from 597 in 2018 to 426 in 2022.
- 2018: 597
- 2019: 708
- 2020: 681
- 2021: 873
- 2022: 426
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Part D drug cost
Part D drug cost increased 38% from $146,806 in 2018 to $202,121 in 2022.
- 2018: $146,806
- 2019: $246,303
- 2020: $237,274
- 2021: $378,130
- 2022: $202,121
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 90% from $5,895.40 in 2021 to $604.33 in 2025.
- 2021: $5,895.40
- 2022: $2,066.30
- 2025: $604.33
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2022), 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
Program year 2025 (payments made January 1 – December 31, 2025): 26 records totaling $604.33.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Janssen Pharmaceuticals, Inc |
Education
In-kind items and services
|
TREMFYA | General | $72.00 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
|
Bimzelx | General | $35.21 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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COSENTYX | General | $31.21 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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CIBINQO | General | $26.85 |
| SUN PHARMACEUTICAL INDUSTRIES INC. |
Food and Beverage
In-kind items and services
|
ILUMYA | General | $26.63 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
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OPZELURA | General | $26.09 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
|
Bimzelx | General | $25.11 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $24.12 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $23.63 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $22.43 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $21.54 |
| Botanix SB Inc |
Food and Beverage
In-kind items and services
|
SOFDRA | General | $20.77 |
| Organogenesis Inc. |
Food and Beverage
In-kind items and services
|
VIA MATRIX | General | $20.69 |
| Biofrontera Inc. |
Food and Beverage
In-kind items and services
|
AMELUZ | General | $20.55 |
| Arcutis Biotherapeutics, Inc. |
Food and Beverage
In-kind items and services
|
Zoryve | General | $20.48 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $20.23 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $20.19 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $20.16 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $18.79 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $18.51 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $18.34 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $17.94 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $16.52 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $16.50 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $12.42 |
(top 25 shown)
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 2016–2021 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, 2017–2022; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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77 | 75 | $219.09 | $103.59 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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49 | 45 | $156.94 | $73.20 |
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11102
Biopsy of related skin growth, first growth
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31 | 31 | $192.23 | $78.37 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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19 | 19 | $323.68 | $135.74 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
11 | 11 | $220.00 | $90.64 |
Source: CMS Part B by Provider and Service, 2022; 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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 91 | 3,693 | $1,087.08 | 69 |
| Clobetasol Propionate | Clobetasol Propionate | 53 | 1,552 | $3,683.94 | 28 |
| Dupixent Pen | Dupilumab | 36 | 1,008 | $122,863.32 | — |
| Fluorouracil | Fluorouracil | 35 | 894 | $3,677.09 | 30 |
| Cephalexin | Cephalexin | 28 | 673 | $396.74 | 19 |
| Hydrocortisone | Hydrocortisone | 22 | 1,065 | $145.78 | 13 |
| Clindamycin Hcl | Clindamycin Hcl | 20 | 757 | $307.60 | — |
| Valacyclovir | Valacyclovir Hcl | 16 | 158 | $845.96 | — |
| Prednisone | Prednisone | 15 | 269 | $85.96 | — |
| Otezla | Apremilast | 15 | 450 | $68,226.99 | — |
| Famotidine | Famotidine | 12 | 540 | $136.97 | — |
| Fluocinolone Acetonide | Fluocinolone Acetonide | 12 | 295 | $664.06 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-03-31NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20041013000652
GA
3476513565
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
Chatham Skin And Cancer Center
639 A Stephenson Ave, Savannah, GA 314055970
Chatham Skin And Cancer Center
21 Tidewater Way, Savannah, GA 314112101
Phone: 9126049519
Chatham Skin And Cancer Center
21 Tidewater Way, Savannah, GA 314112101
Chatham Skin And Cancer Center
1000 Towne Ctr Blvd, Pooler, GA 313224052
Phone: 9123547124
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dermatology
Nurse Practitioner
Physician Assistant - Medical
Physician Assistant (Certified)
Nurse Practitioner - Family
Nurse Practitioner (Certified)
Physician Assistant - Medical
Master of Science, Physician Assistant (Certified)
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Career & Practice History
NPI enumerated June 23, 2006.
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 Nurse Practitioners in Savannah
- Elizabeth Norton, NP
- Gloria Mulvaney, NP
- Tammy Almeida, NP
- Alesha Froehlich, FNP
- Jaqueline Davis, NP
- Amy Thompson
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Mailing Address
900 Mohawk Street, Ste E
Savannah, GA 31419
Phone: 9129250067