Heather Gilliam, PSYD
NPI 1558964353 · Psychologist · Tulsa, OK
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Gilliam, PSYD is a Psychologist provider in Tulsa, OK (NPI 1558964353).
Provider details
- NPI number
- 1558964353
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1226 (OK)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-11-16
- Last updated
- 2020-11-16
- Certified
- 2020-11-16
Frequently asked questions
- What is Heather Gilliam's NPI number?
- Heather Gilliam's National Provider Identifier (NPI) is 1558964353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Gilliam's specialty?
- Heather Gilliam is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Heather Gilliam located?
- Heather Gilliam's practice location on file with NPPES is 6646 S Indianapolis Ave, Tulsa, OK 74136-2605.
- What is Heather Gilliam's phone number?
- The practice phone number listed in the NPPES registry for Heather Gilliam is (918) 260-2895.
- Does Heather Gilliam accept Medicare?
- Heather Gilliam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Gilliam's NPI active?
- Yes — Heather Gilliam's NPI (1558964353) is active in the NPPES registry as of the last update on 2020-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.