DR. NICHOLAS MILTON STAMATOS M.D.
NPI 1205878147
Internal Medicine - Infectious Disease in Baltimore, MD
About Dr. Nicholas Milton Stamatos M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAS MILTON STAMATOS M.D. (NPI 1205878147) is an individual infectious disease provider in Baltimore, Maryland, licensed in Maryland (D53868) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and is a graduate of George Washington University School Of Medicine (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dr. Nicholas Milton Stamatos 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 Reassignment
Medicare enrollment records show Nicholas Stamatos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: University Of Maryland Physicians PA
- 614 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 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Maryland Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21201 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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Nicholas Stamatos's NPI number?
The NPI number for Nicholas Stamatos is 1205878147. It was assigned to this individual provider in the NPPES registry on June 12, 2006.
Where is Nicholas Stamatos located?
Nicholas Stamatos practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 706-2645.
What is Nicholas Stamatos's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Nicholas Stamatos enrolled in Medicare?
Yes. Nicholas Stamatos 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 organization bills Medicare for Nicholas Stamatos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Stamatos reassigns Medicare benefits to University Of Maryland Physicians, P.A. (Baltimore, MD). The 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 Nicholas Stamatos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nicholas Stamatos affiliated with any hospitals?
According to CMS data, Nicholas Stamatos is affiliated with University Of Maryland Medical Center.
When was this NPI record last updated?
The NPPES record for Nicholas Stamatos was last updated on November 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Nicholas Milton Stamatos, M.D. · NPI 1205878147
Infectious Disease physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 12, 2006.
## Identity
- **NPI:** 1205878147 (Entity type: Individual)
- **Enumerated:** June 12, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** D53868 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, Baltimore, MD 21201-1544
- **Phone:** (410) 706-2645 · **Fax:** (410) 706-4619
## 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:** University Of Maryland Physicians, P.A. (NPI 1104877075, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 1991
## Record status
- **NPPES last updated:** November 15, 2010
- **Other identifiers:** Medicare UPIN G80190; Medicaid 701901700 (MD); Medicare PIN P00748562 (MD); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1205878147) · Data from the CMS NPPES public registry.