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PERCY J GRANTHAM III LPC
NPI 1649946229
Counselor - Professional in Houston, TX

Active since August 23, 2021PECOS Enrolled
7877 WILLOW CHASE BLVD, HOUSTON, TX 77070(832) 869-4818(832) 241-2902 Get Directions Write a Review

NPPES record last updated: January 24, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 3, 2024, May 25, 2023, Aug 23, 2021 (3 updates tracked since 2021).

About Percy J Grantham Iii Lpc NPPES

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

PERCY J GRANTHAM III LPC (NPI 1649946229) is an individual professional provider in Houston, Texas, licensed in Texas (86774) and active in the NPI registry since August 2021. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1649946229
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NamePERCY J GRANTHAM IIICredential: LPC
Location Address7877 WILLOW CHASE BLVDHouston, TX 77070-5934
Mailing Address7877 Willow Chase BlvdHouston, TX 77070-5934 · (832) 869-4818 · Fax (832) 241-2902
Phone(832) 869-4818
Fax(832) 241-2902
Sole ProprietorYes
Enumeration DateAugust 23, 2021
Last NPPES UpdateJanuary 24, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 24, 2025
✔ NPI 1649946229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in TX · 86774
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License 86774 (TX)
Also ListedCase ManagementTaxonomy 251B00000X
7877 WILLOW CHASE BLVD, Houston, TX 77070
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1421 W Church St Apt 515515Jacksonville, FL 32202-4173 · Phone (904) 505-6366
Location 2902 Frostwood Dr Ste 201Houston, TX 77024-2402 · Phone (832) 869-4818
Location 323838 Highway 59 NKingwood, TX 77339-1531 · Phone (832) 869-4818

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare, UnitedHealthcare 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)

Percy J Grantham Iii Lpc 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

3

Medicare enrollment records show Percy Grantham reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry Of Texas PLLC
Same address
Psychiatry
7877 WILLOW CHASE BLVD
Houston, TX 77070
  • Reassigned Medicare billing, Texas enrollment
  • 480 clinicians in this Medicare group
NPI 1013476027 (832) 869-4818
Integral Community Services
21 mi
Mental Health
24044 CINCO VILLAGE CENTER BLVD STE 100
Katy, TX 77494
  • Reassigned Medicare billing, Texas enrollment
  • 5 clinicians in this Medicare group
NPI 1669303608 (281) 825-3187
Integral Provider Solutions PLLC
21 mi
Counselor
24044 CINCO VILLAGE CENTER BLVD
Katy, TX 77494
  • Reassigned Medicare billing, Texas enrollment
  • 6 clinicians in this Medicare group
NPI 1255186730 (281) 909-4346

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.

PSYCHIATRY OF TEXAS PLLC
Psychiatry & Neurology (Psychiatry)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
CATHERINE SMITH PA-C
Physician Assistant
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
TRACEY RENEE PAXTON
Counselor (Mental Health)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
VERONICA ANYANGO OGOT PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
MRS. PASHA MATTHIAS PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
DAWN MICHELLE SOLAND
Nurse Practitioner (Psychiatric/Mental Health)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
NIKOLE LAUREN MERCALDI LPC
Counselor (Mental Health)
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818
PSYCHPLUS MEDICAL ASSOCIATES OF CALIFORNIA PC
Internal Medicine
7877 WILLOW CHASE BLVD
HOUSTON, TX 77070
Harris County (832) 869-4818

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 Percy Grantham's NPI number?

The NPI number for Percy Grantham is 1649946229. It was assigned to this individual provider in the NPPES registry on August 23, 2021.

Where is Percy Grantham located?

Percy Grantham practices at 7877 Willow Chase Blvd, Houston, TX 77070. The listed phone number is (832) 869-4818.

What is Percy Grantham's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Percy Grantham enrolled in Medicare?

Yes. Percy Grantham is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Percy Grantham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Percy Grantham reassigns Medicare benefits to 3 organizations: Psychiatry Of Texas PLLC (Houston, TX), Integral Community Services (Katy, TX) and Integral Provider Solutions PLLC (Katy, 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 Percy Grantham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Percy Grantham accept?

Health plans from Blue Cross and Blue Shield of Texas, Cigna Healthcare, UnitedHealthcare and WellPoint list Percy Grantham 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 Percy Grantham was last updated on January 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.