Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HEATHER WARK M.D., PH.D.
NPI 1457705279
Psychiatry & Neurology - Psychiatry in Houston, TX

Q: What is Heather Wark's NPI number?

The NPI number for Heather Wark is 1457705279. It was assigned to this individual provider in the NPPES registry on April 18, 2016.

Q: What is Heather Wark'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 Heather Wark was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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 April 18, 2016PECOS Enrolled

921 GESSNER RD, HOUSTON, TX 77024(713) 242-3000 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 21, 2026, Sep 10, 2025, Oct 10, 2024 and 2 more (5 updates tracked since 2017).

On this page

About Heather Wark M.d., Ph.d. NPPES

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

HEATHER WARK M.D., PH.D. (NPI 1457705279) is an individual psychiatry provider in Houston, Texas, licensed in Texas (V7171) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Salt Lake City.

NPPES Registry Identity

NPI1457705279

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameHEATHER WARKCredential: M.D., PH.D.

Location Address921 GESSNER RDHouston, TX 77024-2501

Mailing Address930 Frostwood Dr Ste 2.200Houston, TX 77024-2450 · (713) 338-4523 · Fax (713) 338-6500

Phone(713) 242-3000

Sole ProprietorNo

Enumeration DateApril 18, 2016

Last NPPES UpdateSeptember 21, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 21, 2026

✔ NPI 1457705279 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in TX · V7171✔ Licensed in UT · 10534809-1205✔ Licensed in MO · 2025019458

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

921 GESSNER RD, Houston, TX 77024

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Secondary Practice Location 1

Location 1324 E 10th Ave Ste 178Salt Lake City, UT 84103-2885 · Phone (801) 408-8502

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Imperial Health Plan of the Southwest, Inc., Medica, 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)

Heather Wark M.d., Ph.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

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

Ssm Regional Health Services

635 mi

Mental Health (Including Community Mental Health Center)

2701 WEST EDGEWOOD, SUITE 101
Jefferson City, MO 65109

Reassigned Medicare billing, Missouri enrollment
54 clinicians in this Medicare group

NPI 1053368159 (573) 634-5303

Ihc Health Services Inc

954 mi

Clinic/Center

1300 N 500 E #130, LOGAN REGIONAL ORTHOPEDICS
Logan, UT 84341

Reassigned Medicare billing, Utah enrollment
3,691 clinicians in this Medicare group

NPI 1205963105 (435) 716-2800

Physician Group Of Utah Inc

1,184 mi

Specialist

406 W SOUTH JORDAN PKWY, SUITE 500
South Jordan, UT 84095

Reassigned Medicare billing, Utah enrollment
254 clinicians in this Medicare group

NPI 1477676930 (801) 984-3418

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 3

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.

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

58 services22 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

35 services15 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77024 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

$176.98 typical visit price

range $58.24 – $176.98

Typical copayment $44.24 (range $14.56 – $44.24)

Most-billed visit code 99205

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 20

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

MUKUKA MUKUPO MUMBI

Nurse Practitioner (Acute Care)