NELLY A HEIMAN MD
NPI 1033326103
Obstetrics & Gynecology in Houston, TX
About Nelly A Heiman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NELLY A HEIMAN MD (NPI 1033326103) is an individual obstetrics & gynecology provider in Houston, Texas, licensed in Texas (M5750) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Willowbrook Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 5
Other Identifiers 4
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
Nelly A Heiman 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
13Medicare enrollment records show Nelly Heiman reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,407 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 1,579 clinicians in this Medicare group
Bryan, TX 77802
- Reassigned Medicare billing, Texas enrollment
- 20 clinicians in this Medicare group
San Antonio, TX 78249
- Reassigned Medicare billing, Texas enrollment
- 379 clinicians in this Medicare group
Indianola, IA 50125
- Reassigned Medicare billing, Iowa enrollment
- 516 clinicians in this Medicare group
Coralville, IA 52241
- Reassigned Medicare billing, Iowa enrollment
- 300 clinicians in this Medicare group
Worthington, MN 56187
- Reassigned Medicare billing, Minnesota enrollment
- 260 clinicians in this Medicare group
Worthington, MN 56187
- Reassigned Medicare billing, Minnesota enrollment
- 92 clinicians in this Medicare group
Watertown, WI 53094
- Reassigned Medicare billing, Wisconsin enrollment
- 215 clinicians in this Medicare group
Granite Falls, MN 56241
- Reassigned Medicare billing, Minnesota enrollment
- 82 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Willowbrook Hospital
Acute Care Hospitals · Houston, TXWatertown Memorial Hospital
Acute Care Hospitals · Watertown, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77070 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.
HOUSTON, TX 77070
HOUSTON, TX 77070
HOUSTON, TX 77070
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 Nelly Heiman's NPI number?
The NPI number for Nelly Heiman is 1033326103. It was assigned to this individual provider in the NPPES registry on May 17, 2007.
Where is Nelly Heiman located?
Nelly Heiman practices at 18220 Tomball Pkwy Suite 100, Houston, TX 77070. The listed phone number is (281) 737-1320.
What is Nelly Heiman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Nelly Heiman enrolled in Medicare?
Yes. Nelly Heiman 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 Nelly Heiman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nelly Heiman reassigns Medicare benefits to 13 organizations: Tmh Physician Associates PLLC (Houston, TX), Houston Methodist Specialty Physicians (Houston, TX), Brazos Valley Obstetric Hospitalist, PA (Bryan, TX), Third Coast Emergency Physicians Southwest PA (San Antonio, TX), Mercy Clinics, Inc (Indianola, IA) and 8 more organizations, listed in the Medicare section above. 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 Nelly Heiman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nelly Heiman accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, CareSource (Common Ground Healthcare), Group Health Cooperative-SCW and MercyCare Health Plans and 6 other insurers list Nelly Heiman 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 Nelly Heiman affiliated with any hospitals?
According to CMS data, Nelly Heiman is affiliated with Houston Methodist Willowbrook Hospital and Watertown Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Nelly Heiman was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Nelly A Heiman, MD · NPI 1033326103
Obstetrics & Gynecology physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since May 17, 2007.
## Identity
- **NPI:** 1033326103 (Entity type: Individual)
- **Enumerated:** May 17, 2007
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** M5750 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 18220 TOMBALL PKWY, SUITE 100, Houston, TX 77070-4347
- **Phone:** (281) 737-1320 · **Fax:** (281) 737-1321
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): Tmh Physician Associates PLLC (NPI 1275779225, Houston, TX); Houston Methodist Specialty Physicians (NPI 1902614332, Houston, TX); Brazos Valley Obstetric Hospitalist, PA (NPI 1720468648, Bryan, TX); Third Coast Emergency Physicians Southwest PA (NPI 1497793475, San Antonio, TX); Mercy Clinics, Inc (NPI 1912304668, Indianola, IA); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** April 21, 2026
- **Other identifiers:** Medicaid 110071404A (MA); Medicaid 190002902 (TX); Medicaid 359727001 (TX); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1033326103) · Data from the CMS NPPES public registry.