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DR. GEOFFREY ANDREW ZIMMERMAN M.D.
NPI 1851320014
Obstetrics & Gynecology in Houston, TX

Active since July 01, 2006PECOS Enrolled
2222 GREENHOUSE RD STE 300, HOUSTON, TX 77084(281) 398-8484(281) 398-8483 Get Directions Write a Review

NPPES record last updated: December 21, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Geoffrey Andrew Zimmerman M.d. NPPES

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

DR. GEOFFREY ANDREW ZIMMERMAN M.D. (NPI 1851320014) is an individual obstetrics & gynecology provider in Houston, Texas, licensed in Texas (TL06162006) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851320014
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. GEOFFREY ANDREW ZIMMERMANCredential: M.D.
Location Address2222 GREENHOUSE RD STE 300Houston, TX 77084-7288
Mailing Address2222 Greenhouse Rd Ste 300Houston, TX 77084-7288 · (281) 398-8484 · Fax (281) 398-8483
Phone(281) 398-8484
Fax(281) 398-8483
Sole ProprietorYes
Enumeration DateJuly 1, 2006
Last NPPES UpdateDecember 21, 2021
NPPES CertifiedDecember 21, 2021
✔ NPI 1851320014 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in TX · TL06162006
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2222 GREENHOUSE RD STE 300, Houston, TX 77084
Open in Google Maps ↗

Other Identifiers 2

Medicaid182244701TX
Other205611284TX · Tax Id

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Harbor Health, Oscar Insurance Company and more.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. Geoffrey Andrew Zimmerman 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 Reassignment

Medicare enrollment records show Geoffrey Zimmerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Obhg Texas Holdings, P.A.
127 mi
Obstetrics & Gynecology
12221 N MOPAC EXPY
Austin, TX 78758
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Obhg Texas Holdings PA
  • 998 clinicians in this Medicare group
NPI 1083917769 (800) 967-2289

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 77084 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. HEENA SULTANA AHMED MD
Anesthesiology (Pain Medicine)
2222 GREENHOUSE RD STE 300
HOUSTON, TX 77084
Harris County (281) 982-2144
PRECISION HEARING L.L.C
Clinic/Center (Hearing and Speech)
2222 GREENHOUSE RD STE 300
HOUSTON, TX 77084
Harris County (832) 955-3477
PRACHI JAIN APRN
Nurse Practitioner (Family)
2222 GREENHOUSE RD STE 300
HOUSTON, TX 77084
Harris County (346) 474-1881
GUNJAN SILKY PATEL M.D.
Physical Medicine & Rehabilitation (Pain Medicine)
2222 GREENHOUSE RD STE 300
HOUSTON, TX 77084
Harris County (464) 741-8813

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 Geoffrey Zimmerman's NPI number?

The NPI number for Geoffrey Zimmerman is 1851320014. It was assigned to this individual provider in the NPPES registry on July 1, 2006.

Where is Geoffrey Zimmerman located?

Geoffrey Zimmerman practices at 2222 Greenhouse Rd Ste 300, Houston, TX 77084. The listed phone number is (281) 398-8484.

What is Geoffrey Zimmerman's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Geoffrey Zimmerman enrolled in Medicare?

Yes. Geoffrey Zimmerman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Geoffrey Zimmerman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Geoffrey Zimmerman reassigns Medicare benefits to Obhg Texas Holdings, P.A. (Austin, 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 Geoffrey Zimmerman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Geoffrey Zimmerman accept?

Health plans from Blue Cross and Blue Shield of Texas, Harbor Health, Oscar Insurance Company and Sendero Health Plans, Local Nonprofit list Geoffrey Zimmerman 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 Geoffrey Zimmerman was last updated on December 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.