DR. NANCY ELLEN GREILICH MD
NPI 1649232422
Anesthesiology in Dallas, TX
About Dr. Nancy Ellen Greilich Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NANCY ELLEN GREILICH MD (NPI 1649232422) is an individual anesthesiology provider in Dallas, Texas, licensed in Texas (K1827) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS, is affiliated with Parkland Health & Hospital System, and is a graduate of University Of Texas Medical Branch At Galveston (1989).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Dr. Nancy Ellen Greilich 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 Reassignment
Medicare enrollment records show Nancy Greilich reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75390
- Reassigned Medicare billing, Texas enrollment
- 5,299 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Parkland Health & Hospital System
Acute Care Hospitals · Dallas, TXMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
DALLAS, TX 75390
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 Nancy Greilich's NPI number?
The NPI number for Nancy Greilich is 1649232422. It was assigned to this individual provider in the NPPES registry on April 5, 2006. The provider is also known as Nancy Ellen Brown MD.
Where is Nancy Greilich located?
Nancy Greilich practices at 5323 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (214) 648-7833.
What is Nancy Greilich's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Nancy Greilich enrolled in Medicare?
Yes. Nancy Greilich 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 Nancy Greilich's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Greilich reassigns Medicare benefits to University Of Texas Southwestern Medical Center At Dallas (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 Nancy Greilich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nancy Greilich accept?
Health plans from Blue Cross and Blue Shield of Texas list Nancy Greilich 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 Nancy Greilich affiliated with any hospitals?
According to CMS data, Nancy Greilich is affiliated with Parkland Health & Hospital System.
When was this NPI record last updated?
The NPPES record for Nancy Greilich was last updated on March 29, 2011. 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. Nancy Ellen Greilich, MD · NPI 1649232422
Anesthesiology physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since April 5, 2006.
## Identity
- **NPI:** 1649232422 (Entity type: Individual)
- **Enumerated:** April 5, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** K1827 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5323 HARRY HINES BLVD, Dallas, TX 75390-9068
- **Phone:** (214) 648-7833 · **Fax:** (214) 648-6799
## 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 Texas Southwestern Medical Center At Dallas (NPI 1083669766, Dallas, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 1989
## Record status
- **NPPES last updated:** March 29, 2011
- **Other identifiers:** Medicare UPIN G16452; Medicare ID-Type Unspecified 83W759; Medicaid 042725401 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1649232422) · Data from the CMS NPPES public registry.