CHARLES F. FATSEAS M.D.
NPI 1407874944
Emergency Medicine in Sherborn, MA
About Charles F. Fatseas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES F. FATSEAS M.D. (NPI 1407874944) is an individual emergency medicine provider in Sherborn, Massachusetts, licensed in Massachusetts (50232) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Lincoln Medical Center, and is a graduate of Temple University School Of Medicine (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
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 F. Fatseas M.d. 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
7Medicare enrollment records show Charles Fatseas reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ayer, MA 01432
- Reassigned Medicare billing, Massachusetts enrollment
- 290 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 305 clinicians in this Medicare group
Newburyport, MA 01950
- Reassigned Medicare billing, Massachusetts enrollment
- 81 clinicians in this Medicare group
Newport, TN 37821
- Reassigned Medicare billing, Tennessee enrollment
- 664 clinicians in this Medicare group
Maryville, TN 37804
- Reassigned Medicare billing, Tennessee enrollment
- 390 clinicians in this Medicare group
Nashville, TN 37236
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: Middle Tennessee Emergency Physicians, P.C.
- 225 clinicians in this Medicare group
Ripley, TN 38063
- Reassigned Medicare billing, Tennessee enrollment
- 49 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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lincoln Medical Center
Acute Care Hospitals · Fayetteville, TNHardin Medical Center
Acute Care Hospitals · Savannah, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01770 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Fatseas's NPI number?
The NPI number for Charles Fatseas is 1407874944. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is Charles Fatseas located?
Charles Fatseas practices at 51 Bogastow Brook Rd, Sherborn, MA 01770. The listed phone number is (508) 733-6611.
What is Charles Fatseas's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Charles Fatseas enrolled in Medicare?
Yes. Charles Fatseas 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 Fatseas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Fatseas reassigns Medicare benefits to 7 organizations: Steward Emergency Physicians, Inc (Ayer, MA), Community Medical Associates, Inc. (Lawrence, MA), Newburyport Emergency Physicians, PLLC (Newburyport, MA), Emergency Coverage, LLC (Newport, TN), App Of Tennessee Ed, PLLC (Maryville, TN) and 2 more organizations, listed in the Medicare section above. 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 Fatseas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Fatseas accept?
Health plans from Oscar Health, Oscar Insurance Company and Taro Health list Charles Fatseas 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 Fatseas affiliated with any hospitals?
According to CMS data, Charles Fatseas is affiliated with Lincoln Medical Center and Hardin Medical Center.
When was this NPI record last updated?
The NPPES record for Charles Fatseas was last updated on June 5, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 F. Fatseas, M.D. · NPI 1407874944
Emergency Medicine physician in Sherborn, Massachusetts. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1407874944 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 50232 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 51 BOGASTOW BROOK RD, Sherborn, MA 01770-1262
- **Phone:** (508) 733-6611 · **Fax:** (508) 653-2953
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Steward Emergency Physicians, Inc (NPI 1780971275, Ayer, MA); Community Medical Associates, Inc. (NPI 1144544040, Lawrence, MA); Newburyport Emergency Physicians, PLLC (NPI 1215724364, Newburyport, MA); Emergency Coverage, LLC (NPI 1427005008, Newport, TN); App Of Tennessee Ed, PLLC (NPI 1003230236, Maryville, TN); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 1981
## Record status
- **NPPES last updated:** June 5, 2009
- **Other identifiers:** Medicare ID-Type Unspecified J04352 (MA); Medicare UPIN A57611 (MA); Medicaid 3002314 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1407874944) · Data from the CMS NPPES public registry.