MERCIE HEALTH LLC
NPI 1821674961
Psychiatry & Neurology - Psychiatry in Katy, TX

Q: What is Mercie Health LLC's NPI number?

The NPI number for Mercie Health LLC is 1821674961. It was assigned to this organization in the NPPES registry on March 19, 2021.

Q: What is Mercie Health LLC's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Mercie Health LLC was last updated on August 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since March 19, 2021

25031 WESTHEIMER PKWY STE 500, KATY, TX 77494(832) 562-0553(833) 907-2370 Get Directions Write a Review

NPPES record last updated: August 8, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 8, 2023, Aug 27, 2021, Mar 19, 2021 (3 updates tracked since 2021).

On this page

About Mercie Health Llc NPPES

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

MERCIE HEALTH LLC (NPI 1821674961) is a healthcare organization registered as a psychiatry in Katy, Texas and active in the NPI registry since March 2021. The organization lists Sylvia Udokoro Nwakanma, Nurse Practitioner/ceo, as its authorized official.

NPPES Registry Identity

NPI1821674961

Entity TypeOrganization

Primary Taxonomy2084P0800X

Legal Business NameMERCIE HEALTH LLC

Location Address25031 WESTHEIMER PKWY STE 500Katy, TX 77494-7317

Mailing Address25031 Westheimer Pkwy Ste 500Katy, TX 77494-7317 · (832) 562-0553 · Fax (833) 907-2370

Phone(832) 562-0553

Fax(833) 907-2370

Organization SubpartNo

Authorized OfficialSylvia Udokoro NwakanmaNurse Practitioner/ceo · (832) 404-2957

Enumeration DateMarch 19, 2021

Last NPPES UpdateAugust 8, 20233 updates tracked since enumeration

NPPES CertifiedAugust 8, 2023

✔ NPI 1821674961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Also ListedFamily MedicineTaxonomy 207Q00000X

25031 WESTHEIMER PKWY STE 500, Katy, TX 77494

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mercie Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 5 clinicians reassign Medicare billing to Mercie Health LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (5)

Betty Louis-Davis, APRN

Nurse Practitioner

NPI 1902486608

25031 WESTHEIMER PKWY STE 500
Katy, TX 77494

(832) 562-0553

✔ PECOSSame address

Yulia Zolotayko-Merchant, PMHNP, FNP, APRN

Nurse Practitioner

NPI 1942850870

25031 WESTHEIMER PKWY STE 500
Katy, TX 77494

(832) 562-0553

✔ PECOS✔ Accepts MedicareSame address

Sylvia Nwakanma

Nurse Practitioner

NPI 1467946178

1601 LIBERTY ST STE B
Richmond, TX 77469

(832) 449-3500

✔ PECOS✔ Accepts Medicare11 mi

Jonathan Rey, M.D.

Family Practice

NPI 1679745368

223 BURLEY AVE
Hopkinsville, KY 42240

(270) 887-6565

✔ PECOS✔ Accepts Medicare684 mi

Jeanette Ferdinand, APRN, PMHNP-BC

Nurse Practitioner

NPI 1184419012

PO BOX 764
Kingshill, VI 00851

(000) 000-0000

✔ PECOS

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

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 Mercie Health LLC's NPI number?

The NPI number for Mercie Health LLC is 1821674961. It was assigned to this organization in the NPPES registry on March 19, 2021.

Where is Mercie Health LLC located?

Mercie Health LLC is located at 25031 Westheimer Pkwy Ste 500, Katy, TX 77494. The listed phone number is (832) 562-0553.

What is Mercie Health LLC's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mercie Health LLC enrolled in Medicare?

Yes. Mercie Health LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mercie Health LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Mercie Health LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (4) and Family Practice (1). Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mercie Health LLC accept?

Health plans from Blue Cross and Blue Shield of Texas list Mercie Health LLC 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 Mercie Health LLC was last updated on August 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.