Marsha A. Williamson, NP
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 31
- Hospital affiliations
- 2
- Industry payments
- $142
- Medical groups
- 5
- Practice address
- 2063A Bartow Ave Ste A, Bronx, NY 10475
- Practice phone
- Call (917) 310-3371
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nao Medical
Urgent Care - Additional Location · Bronx, New York
Find Marsha Williamson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Marsha A. Williamson is a nurse practitioner in Bronx, New York
Marsha Williamson practices at Nao Medical in Bronx, New York.
Marsha Williamson's NPI, 1265552277, was assigned on March 31, 2007. Marsha Williamson holds New York license F304057.
- NPI
- 1265552277NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749355394
- NPI enumeration date
- March 31, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (917) 310-3371
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marsha A. Williamson practices at 2 locations in Bronx, New York
Marsha Williamson's primary practice is Nao Medical, at 2063A Bartow Ave Ste A, Bronx, NY 10475. The practice phone is (917) 310-3371. Marsha Williamson also practices at Nao Medical, 2063 A Bartow Ave, Bronx, NY 10475.
- Nao MedicalPrimary2063A Bartow Ave Ste A, Bronx, NY 10475Phone(917) 310-3371
- Nao Medical2063 A Bartow Ave, Bronx, NY 10475 · Bronx CountyPhone(917) 310-3371
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Marsha A. Williamson is affiliated with 4 sites of care and 5 medical groups
Marsha Williamson's primary practice is Nao Medical in Bronx, New York. Marsha Williamson is also affiliated with North Shore University Hospital. The medical group on file is Nao Medical. Dmand AI also links Marsha Williamson to 1 more hospital, 4 medical groups and 1 group practice or clinic, each named with a free account. Marsha Williamson's employer is on file too: an urgent care center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Marsha A. Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marsha Williamson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nao Medical | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Marsha A. Williamson is one of 1,991 nurse practitioners in New York
Nurse practitioner is Marsha Williamson's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Marsha Williamson is licensed in New York.
Specialties and state licenses
- Nurse practitioner, New YorkPrimary
Nurse practitioners near Marsha Williamson
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Marsha A. Williamson treated 20 Medicare patients in 2024, average age 71
CMS counts 20 Medicare patients who saw Marsha Williamson in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.76, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marsha Williamson's median patient age at 51, with 67% women.
Chronic conditions among Marsha Williamson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Marsha Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women67%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marsha A. Williamson wrote 31 Medicare Part D claims in 2024
In 2024, Marsha Williamson wrote 31 Medicare Part D claims for 25 patients. 97% of them were for generic drugs.
Marsha Williamson's Part D claims by kind of drug, 2024
- Generic30 claims97%
- Brand-name and other1 claims3%
Drug classes CMS tracks in Marsha Williamson's Part D claims, 2024
- Antibiotics39%12 of 31 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Marsha A. Williamson takes part in Medicare
Marsha Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Marsha A. Williamson received $142 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marsha Williamson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. bioMerieux paid the most, $142.
Companies that paid Marsha Williamson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marsha A. Williamson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Marsha A. Williamson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marsha A. Williamson's NPI number?
Marsha A. Williamson's NPI number is 1265552277. It was assigned on March 31, 2007, and it is active in the NPI Registry.
What does Marsha A. Williamson specialize in?
Marsha A. Williamson is a nurse practitioner in Bronx, New York. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Marsha A. Williamson practice?
Marsha Williamson practices at 2063A Bartow Ave Ste A, Bronx, NY 10475. Marsha Williamson also practices at 2063 A Bartow Ave, Bronx, NY 10475. Marsha Williamson's primary practice is Nao Medical in Bronx, New York. Dmand AI also links Marsha Williamson to 1 hospital, 4 medical groups and 1 group practice or clinic.
What is Marsha A. Williamson's office phone number?
The practice phone on file for Marsha Williamson is (917) 310-3371.
What is Marsha A. Williamson's medical license number?
Marsha Williamson holds New York license F304057.
Which hospitals is Marsha A. Williamson affiliated with?
Marsha Williamson is affiliated with North Shore University Hospital. Dmand AI links Marsha Williamson to 1 more hospital.
What medical group is Marsha A. Williamson part of?
Marsha Williamson is linked to Nao Medical. Dmand AI links Marsha Williamson to 4 more medical groups.
Does Marsha A. Williamson accept Medicare?
Yes. CMS lists Marsha Williamson as accepting Medicare assignment.
How many Medicare patients does Marsha A. Williamson see?
CMS counts 20 Medicare patients who saw Marsha Williamson in 2024, with an average age of 71.
Has Marsha A. Williamson received payments from drug or device companies?
CMS Open Payments shows $142 in general payments to Marsha Williamson from 1 company from 2025 to 2025. The largest total came from bioMerieux.
How long has Marsha A. Williamson been practicing?
Marsha Williamson graduated from medical school in 2002, 24 years ago.
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