William Fremouw Swanson, DNP
Psychiatric/Mental Health Nurse Practitioner · New York, NY
William Fremouw Swanson, DNP is a psychiatric/mental health nurse practitioner with a practice address in New York, New York, and NPI 1477190460, issued on Dec 9, 2019. Check the license (New York 404203, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Fremouw Swanson
- Credential
- DNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 404203 NY
778459 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1425 Madison Ave, New York, NY 10029
- Phone
- (212) 659-1381
- Enumerated
- Dec 9, 2019
- Record last updated
- Nov 1, 2024
- Medicare enrollment
- Enrolled (PECOS I20221219001198); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,129 in New York → Look up another NPI →
Also registered at 1425 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hameed Azeb Shahul, M.B.B.SPsychosomatic Medicine Physician1528514494
- Roy Bachar, M.D.Psychiatry Physician1508027715
- Alexander Blum, M.D.Pediatrics Physician1346449121
Verify William Fremouw Swanson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 404203Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
48 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Icahn School OF Medicine AT Mount SinaiNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Fremouw Swanson among 4,129 psychiatric/mental health nurse practitioner records in New York
William Fremouw Swanson, DNP is one of 4,129 psychiatric/mental health nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 52% of them.
- NPI issued2019 · 52% of these records are older, 42% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2022 · median 2021 among the 1,914 with a school on file
- Record last updated2024 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in New York
There are 4,129 psychiatric/mental health nurse practitioner records in New York.
All 4,129 in New York → Every provider in New York → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Elizabeth Aronson, NPNew York, NY 100291336591270
- Gregory BovenziNew York, NY 100291003405713
- Anna Bunag, PMHNPNew York, NY 100291922415694
- Steven ColonNew York, NY 100291568085355
- Alexandra Crowley, NPNew York, NY 100291760751754
- Marvin Louie EnerioNew York, NY 100291952065260
- Melissa Gray, DNP, PMHNP-BC, RNNew York, NY 100291114657947
- Anthony Havens, RN, NPNew York, NY 100291336780014
Common questions
What is William Fremouw Swanson, DNP's NPI number?
William Fremouw Swanson, DNP's National Provider Identifier (NPI) is 1477190460, issued on Dec 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is William Fremouw Swanson, DNP located?
The NPPES record lists a practice address at 1425 Madison Ave, New York, NY, 10029. Phone: (212) 659-1381. Providers update this record themselves, so call before visiting.
How can I verify William Fremouw Swanson, DNP's license?
NPPES lists New York license number 404203, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does William Fremouw Swanson, DNP prescribe under Medicare Part D?
In 2024, William Fremouw Swanson, DNP had 48 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.