1. Home
  2. Directory
  3. Massachusetts
  4. Waltham
  5. Nurse Practitioner
  6. NPI Profile

CHARLES MAHDY
NPI 1750978755
Nurse Practitioner - Psychiatric/Mental Health in Waltham, MA

Active since December 23, 2020PECOS EnrolledAccepts Medicare Assignment
19 WINTHROP ST APT 1, WALTHAM, MA 02453(617) 230-8129 Get Directions Write a Review

NPPES record last updated: April 26, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 26, 2021, Dec 23, 2020 (2 updates tracked since 2020).

About Charles Mahdy NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHARLES MAHDY (NPI 1750978755) is an individual psychiatric/mental health provider in Waltham, Massachusetts, licensed in Massachusetts (RN2320527) and active in the NPI registry since December 2020. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1750978755
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameCHARLES MAHDY
Location Address19 WINTHROP ST APT 1Waltham, MA 02453-2831
Mailing Address19 Winthrop St Apt 1Waltham, MA 02453-2831 · (617) 230-8129
Phone(617) 230-8129
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateDecember 23, 2020
Last NPPES UpdateApril 26, 20212 updates tracked since enumeration
NPPES CertifiedApril 26, 2021
✔ NPI 1750978755 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN2320527
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
19 WINTHROP ST APT 1, Waltham, MA 02453
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Charles Mahdy is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5890103063
PECOS Enrollment IDI20210428001574
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
92 services31 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
50 services18 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
20 services19 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02453 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charles Mahdy's NPI number?

The NPI number for Charles Mahdy is 1750978755. It was assigned to this individual provider in the NPPES registry on December 23, 2020.

Where is Charles Mahdy located?

Charles Mahdy practices at 19 Winthrop St Apt 1, Waltham, MA 02453. The listed phone number is (617) 230-8129.

What is Charles Mahdy's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Charles Mahdy enrolled in Medicare?

Yes. Charles Mahdy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Charles Mahdy accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Charles Mahdy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Charles Mahdy affiliated with any hospitals?

According to CMS data, Charles Mahdy is affiliated with Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Charles Mahdy was last updated on April 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.