CHARLES S WASSERMAN MD
NPI 1659361020
Psychiatry & Neurology - Psychiatry in Concord, MA
About Charles S Wasserman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES S WASSERMAN MD (NPI 1659361020) is an individual psychiatry provider in Concord, Massachusetts, licensed in Massachusetts (75442) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Tennessee, Hsc, College Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Charles S Wasserman Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Charles Wasserman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 451 clinicians in this Medicare group
Belmont, MA 02478
- Reassigned Medicare billing, Massachusetts enrollment
- 422 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01742 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CONCORD, MA 01742
CONCORD, MA 01742
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 Wasserman's NPI number?
The NPI number for Charles Wasserman is 1659361020. It was assigned to this individual provider in the NPPES registry on October 26, 2005.
Where is Charles Wasserman located?
Charles Wasserman practices at 133 Old Road To 9 Acre Cor Emerson Hospital, Concord, MA 01742. The listed phone number is (978) 287-3543.
What is Charles Wasserman's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Charles Wasserman enrolled in Medicare?
Yes. Charles Wasserman 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.
Which organizations bill Medicare for Charles Wasserman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Wasserman reassigns Medicare benefits to 2 organizations: Emerson Practice Associates, Inc. (Concord, MA) and The Mclean Hospital Corporation (Belmont, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Wasserman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Charles Wasserman was last updated on July 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Charles S Wasserman, MD · NPI 1659361020
Psychiatry physician in Concord, Massachusetts. Individual provider, active in the CMS NPPES registry since October 26, 2005.
## Identity
- **NPI:** 1659361020 (Entity type: Individual)
- **Enumerated:** October 26, 2005
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 75442 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 133 OLD ROAD TO 9 ACRE COR, EMERSON HOSPITAL, Concord, MA 01742-4159
- **Phone:** (978) 287-3543 · **Fax:** (978) 287-3695
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Emerson Practice Associates, Inc. (NPI 1508020199, Concord, MA); The Mclean Hospital Corporation (NPI 1114979580, Belmont, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 1988
## Record status
- **NPPES last updated:** July 16, 2007
- **Other identifiers:** Medicare ID-Type Unspecified J12616 (MA); Medicare UPIN F29196; Medicaid 3128661 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1659361020) · Data from the CMS NPPES public registry.