ANDREW MAMMEN M.D.
NPI 1619923786
Psychiatry & Neurology - Neurology in Baltimore, MD
About Andrew Mammen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW MAMMEN M.D. (NPI 1619923786) is an individual neurology provider in Baltimore, Maryland, licensed in Maryland (D61931) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Andrew Mammen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Andrew Mammen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 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 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Andrew Mammen's NPI number?
The NPI number for Andrew Mammen is 1619923786. It was assigned to this individual provider in the NPPES registry on May 26, 2006.
Where is Andrew Mammen located?
Andrew Mammen practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 550-5624.
What is Andrew Mammen's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Andrew Mammen enrolled in Medicare?
Yes. Andrew Mammen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Andrew Mammen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Mammen reassigns Medicare benefits to Johns Hopkins University (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 Andrew Mammen'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 Andrew Mammen was last updated on February 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Andrew Mammen, M.D. · NPI 1619923786
Neurology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 26, 2006.
## Identity
- **NPI:** 1619923786 (Entity type: Individual)
- **Enumerated:** May 26, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** D61931 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4940 EASTERN AVE, Baltimore, MD 21224-2735
- **Phone:** (410) 550-5624
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Johns Hopkins University (NPI 1306810619, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 12, 2013
- **Other identifiers:** Medicaid 410422600 (MD); Medicare PIN KR37N702 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1619923786) · Data from the CMS NPPES public registry.