Charles Mahdy
Psychiatric/Mental Health Nurse Practitioner · Waltham, MA
Charles Mahdy is a psychiatric/mental health nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1750978755, issued on Dec 23, 2020. Check the license (Massachusetts RN2320527, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Charles Mahdy
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN2320527 MA
Self-reported in NPPES; status is on the state search - Practice location
- 19 Winthrop St Apt 1, Waltham, MA 02453
- Phone
- (617) 230-8129
- Enumerated
- Dec 23, 2020
- Record last updated
- Apr 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210428001574); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Verify Charles Mahdy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2320527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
521 Medicare Part D claims for 67 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Clonidine Hcl35 claims
- Gabapentin34 claims
- Quetiapine Fumarate33 claims
- Sertraline Hcl32 claims
- Trazodone Hcl29 claims
- Clonazepam24 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 2 group practices
- Brigham And Womens Hospital IncBoston, MA
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Mahdy among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Charles Mahdy is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 45% of them.
- NPI issued2020 · 45% of these records are older, 48% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2021 among the 1,309 with a school on file
- Record last updated2021 · 23% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 psychiatric/mental health nurse practitioner records list a practice address in Waltham
They are 20 of the 2,111 NPPES records with a practice address in Waltham, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Waltham → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Kathleen Davidson, RNCSWaltham, MA 024531366554149
- Rachel Egan, RN, PMHNP-BCWaltham, MA 024531285024448
- Nicole GelinWaltham, MA 024531952042889
- Brenda KobusingyeWaltham, MA 024531407556038
- Veenu Thakur, PMHNP-BCWaltham, MA 024531275901514
- Jodi Tippett, APRN BCWaltham, MA 024531083797302
- Jenna WesselsWaltham, MA 024531013481290
- Samuel DavidsonWaltham, MA 024521831885615
Common questions
What is Charles Mahdy's NPI number?
Charles Mahdy's National Provider Identifier (NPI) is 1750978755, issued on Dec 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Charles Mahdy located?
The NPPES record lists a practice address at 19 Winthrop St Apt 1, Waltham, MA, 02453. Phone: (617) 230-8129. Providers update this record themselves, so call before visiting.
How can I verify Charles Mahdy's license?
NPPES lists Massachusetts license number RN2320527, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Charles Mahdy prescribe under Medicare Part D?
In 2024, Charles Mahdy had 521 Medicare Part D claims for 67 beneficiaries; 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.