DR. SPENCER COREY GREENE M.D.
NPI 1952397861
Emergency Medicine - Medical Toxicology in Kingwood, TX
About Dr. Spencer Corey Greene M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SPENCER COREY GREENE M.D. (NPI 1952397861) is an individual medical toxicology provider in Kingwood, Texas, licensed in Texas (P4572) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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. Spencer Corey Greene M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Spencer Greene reassigns Medicare billing to 5 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
- 2,296 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Texas Childrens Physician Group
- 2,498 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 387 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77339 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KINGWOOD, TX 77339
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 Spencer Greene's NPI number?
The NPI number for Spencer Greene is 1952397861. It was assigned to this individual provider in the NPPES registry on September 26, 2005.
Where is Spencer Greene located?
Spencer Greene practices at 22999 Us Hwy 59, Kingwood, TX 77339. The listed phone number is (281) 359-7500.
What is Spencer Greene's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Medical Toxicology, with taxonomy code 207PT0002X.
Is Spencer Greene enrolled in Medicare?
Yes. Spencer Greene is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Spencer Greene's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Spencer Greene reassigns Medicare benefits to 5 organizations: Baylor College Of Medicine (Houston, TX), Texas Children's Physician Group (Houston, TX), Baylor College Of Medicine (Houston, TX), Sound Physicians Emergency Medicine Of Texas PLLC (Killeen, TX) and Emergency Medicine Services Of Tx, PLLC (San Antonio, TX). 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 Spencer Greene's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Spencer Greene accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and UnitedHealthcare list Spencer Greene 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 Spencer Greene was last updated on January 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Spencer Corey Greene, M.D. · NPI 1952397861
Medical Toxicology physician in Kingwood, Texas. Individual provider, active in the CMS NPPES registry since September 26, 2005.
## Identity
- **NPI:** 1952397861 (Entity type: Individual)
- **Enumerated:** September 26, 2005
- **Primary specialty:** Emergency Medicine - Medical Toxicology · taxonomy 207PT0002X
- **State license:** P4572 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22999 US HWY 59, Kingwood, TX 77339
- **Phone:** (281) 359-7500
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Baylor College Of Medicine (NPI 1053352914, Houston, TX); Texas Children's Physician Group (NPI 1861675506, Houston, TX); Baylor College Of Medicine (NPI 1881026664, Houston, TX); Sound Physicians Emergency Medicine Of Texas PLLC (NPI 1518475557, Killeen, TX); Emergency Medicine Services Of Tx, PLLC (NPI 1245938729, San Antonio, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 4, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1952397861) · Data from the CMS NPPES public registry.