DR. DEEPAK S MAHAJAN MD
NPI 1104923994
Psychiatry & Neurology - Psychiatry in Chester, PA
About Dr. Deepak S Mahajan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEEPAK S MAHAJAN MD (NPI 1104923994) is an individual psychiatry provider in Chester, Pennsylvania, licensed in Pennsylvania (MD419253) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dr. Deepak S Mahajan 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
5Medicare enrollment records show Deepak Mahajan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chester, PA 19013
- Reassigned Medicare billing, Pennsylvania enrollment
- 654 clinicians in this Medicare group
Sharon Hill, PA 19079
- Reassigned Medicare billing, Pennsylvania enrollment
- 18 clinicians in this Medicare group
Kennett Square, PA 19348
- Reassigned Medicare billing, Pennsylvania enrollment
- 37 clinicians in this Medicare group
Downingtown, PA 19335
- Reassigned Medicare billing, Pennsylvania enrollment
- 24 clinicians in this Medicare group
Lincoln, RI 02865
- Reassigned Medicare billing, Pennsylvania enrollment
- 22 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 19013 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.
CHESTER, PA 19013
CHESTER, PA 19013
CHESTER, PA 19013
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 Deepak Mahajan's NPI number?
The NPI number for Deepak Mahajan is 1104923994. It was assigned to this individual provider in the NPPES registry on September 20, 2006.
Where is Deepak Mahajan located?
Deepak Mahajan practices at 1 Medical Center Blvd, Chester, PA 19013. The listed phone number is (610) 874-5257.
What is Deepak Mahajan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Deepak Mahajan enrolled in Medicare?
Yes. Deepak Mahajan 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 Deepak Mahajan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deepak Mahajan reassigns Medicare benefits to 5 organizations: Prospect Health Access Network, Inc. (Chester, PA), Merakey Delaware County (Sharon Hill, PA), Holcomb Associates, Inc. (Kennett Square, PA), Human Services, Inc. (Downingtown, PA) and Fellowship Health Resources, Inc (Lincoln, RI). 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 Deepak Mahajan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Deepak Mahajan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Deepak Mahajan 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.
When was this NPI record last updated?
The NPPES record for Deepak Mahajan was last updated on July 8, 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.
# Dr. Deepak S Mahajan, MD · NPI 1104923994
Psychiatry physician in Chester, Pennsylvania. Individual provider, active in the CMS NPPES registry since September 20, 2006.
## Identity
- **NPI:** 1104923994 (Entity type: Individual)
- **Enumerated:** September 20, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** MD419253 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 MEDICAL CENTER BLVD, Chester, PA 19013-3902
- **Phone:** (610) 874-5257 · **Fax:** (610) 874-7241
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Prospect Health Access Network, Inc. (NPI 1013364520, Chester, PA); Merakey Delaware County (NPI 1750505889, Sharon Hill, PA); Holcomb Associates, Inc. (NPI 1184847766, Kennett Square, PA); Human Services, Inc. (NPI 1285635227, Downingtown, PA); Fellowship Health Resources, Inc (NPI 1245239680, Lincoln, RI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H81869 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1104923994) · Data from the CMS NPPES public registry.