DR. ESSA HANNA HATTAR MD
NPI 1003591926
Family Medicine in Pontiac, MI
About Dr. Essa Hanna Hattar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ESSA HANNA HATTAR MD (NPI 1003591926) is an individual family medicine provider in Pontiac, Michigan, licensed in Michigan (4031512896) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS and maintains a secondary practice location in Allen Park.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 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 (PECOS)
Dr. Essa Hanna Hattar Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Essa Hattar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75244
- Reassigned Medicare billing, Michigan enrollment
- 666 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 48342 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.
PONTIAC, MI 48342
PONTIAC, MI 48342
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 Essa Hattar's NPI number?
The NPI number for Essa Hattar is 1003591926. It was assigned to this individual provider in the NPPES registry on June 19, 2023.
Where is Essa Hattar located?
Essa Hattar practices at 50 N Perry St, Pontiac, MI 48342. The listed phone number is (248) 338-5392.
What is Essa Hattar's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Essa Hattar enrolled in Medicare?
Yes. Essa Hattar is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Essa Hattar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Essa Hattar reassigns Medicare benefits to Signify Health Medical Associates, PLLC (Dallas, TX). 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 Essa Hattar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Essa Hattar accept?
Health plans from CareSource (Common Ground Healthcare) list Essa Hattar 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 Essa Hattar was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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. Essa Hanna Hattar, MD · NPI 1003591926
Family Medicine physician in Pontiac, Michigan. Individual provider, active in the CMS NPPES registry since June 19, 2023.
## Identity
- **NPI:** 1003591926 (Entity type: Individual)
- **Enumerated:** June 19, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4031512896 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 N PERRY ST, Pontiac, MI 48342-2217
- **Phone:** (248) 338-5392
## 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:** Signify Health Medical Associates, PLLC (NPI 1750845863, Dallas, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1003591926) · Data from the CMS NPPES public registry.