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HEATHER ELIZABETH MACHEN M.D.
NPI 1023143369
Pediatrics - Pediatric Emergency Medicine in Houston, TX

Active since February 23, 2007PECOS Enrolled
6701 FANNIN ST, HOUSTON, TX 77030(832) 824-2271(832) 825-5426 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Heather Elizabeth Machen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HEATHER ELIZABETH MACHEN M.D. (NPI 1023143369) is an individual pediatric emergency medicine provider in Houston, Texas, licensed in Texas (M5825) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023143369
Entity TypeIndividualFemale
Primary Taxonomy2080P0204X
Provider Legal NameHEATHER ELIZABETH MACHENCredential: M.D.
Location Address6701 FANNIN STHouston, TX 77030-2316
Mailing Address2 E Greenway Plz, Suite 900Houston, TX 77046-0297 · (713) 798-1750 · Fax (713) 798-1144
Phone(832) 824-2271
Fax(832) 825-5426
Sole ProprietorNo
Enumeration DateFebruary 23, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1023143369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in TX · M5825
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
6701 FANNIN ST, Houston, TX 77030
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Heather Elizabeth Machen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Heather Machen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine Physicians Of Fairfield County, LLC
1,454 mi
Emergency Medicine
30 SHELBURNE RD
Stamford, CT 06902
  • Reassigned Medicare billing, Connecticut enrollment
  • 63 clinicians in this Medicare group
NPI 1689614109 (330) 493-4443
Emergency Medicine Physicians Of New Haven County,llc
1,504 mi
Emergency Medicine
435 LEWIS AVE
Meriden, CT 06451
  • Reassigned Medicare billing, Connecticut enrollment
  • 69 clinicians in this Medicare group
NPI 1083910962 (203) 694-8200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

SONIA ANN MONTEIRO MD
Pediatrics (Developmental - Behavioral Pediatrics)
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000
MEENAKSHI G HEGDE MD
Pediatrics (Pediatric Hematology-Oncology)
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000
RYANN HATTORI CRNA
Nurse Anesthetist, Certified Registered
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000
LAUREN WILSON CASEY PNP-AC
Nurse Practitioner
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000
JACK DAVID MCGOWAN M.D.
Pediatrics (Neonatal-Perinatal Medicine)
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000
MRS. TINA BRADSHAW PNP
Nurse Practitioner
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 822-1764
DR. GARY DAVID CLARK MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 822-5046
VERONICA A. VICTORIAN PA
Physician Assistant
6701 FANNIN ST
HOUSTON, TX 77030
Harris County (832) 824-1000

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 Heather Machen's NPI number?

The NPI number for Heather Machen is 1023143369. It was assigned to this individual provider in the NPPES registry on February 23, 2007.

Where is Heather Machen located?

Heather Machen practices at 6701 Fannin St, Houston, TX 77030. The listed phone number is (832) 824-2271.

What is Heather Machen's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Heather Machen enrolled in Medicare?

Yes. Heather Machen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Heather Machen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Heather Machen reassigns Medicare benefits to 2 organizations: Emergency Medicine Physicians Of Fairfield County, LLC (Stamford, CT) and Emergency Medicine Physicians Of New Haven County,llc (Meriden, CT). 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 Heather Machen'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 Heather Machen 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.