Sierra Gillis
Psychologist · Detroit, MI
Sierra Gillis is a psychologist with a practice address in Detroit, Michigan, and NPI 1033728613, issued on Jul 29, 2020. Check the license (Michigan 6352000029, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Sierra Gillis
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 6352000029 MI
Self-reported in NPPES; status is on the state search - Practice location
- 15000 Gratiot Ave, Detroit, MI 48205
- Phone
- (313) 423-3067
- Enumerated
- Jul 29, 2020
- Record last updated
- Jul 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20260516000487); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 15000 Gratiot Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sierra Gillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6352000029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Psychologist providers in Michigan
There are 2,549 psychologist records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other psychologist records in Michigan
- Linda Aardema, PSY S PCBirmingham, MI1659391670
- Azad Abbasi, M.S.Detroit, MI1043632862
- Ann Abbey, MA, LLP, RYTRoyal Oak, MI1962034736
- Ban Abbo, MA, LLPCommerce Township, MI1588992499
- Sarah Abdel-Wahab-O'Brien, LLPYpsilanti, MI1518614262
- Inaam AbdulkarimWalled Lake, MI1891392577
- Max Abelman, M. A., L. L. P.Detroit, MI1346433505
- Jeannah Rose Abou AssalyAnn Arbor, MI1174483515
- Atara Abramsky, PH.DSouthfield, MI1497182828
- Maha Abu-Hamdan, PHD, LLPOxford, MI1356689327
Common questions
What is Sierra Gillis's NPI number?
Sierra Gillis's National Provider Identifier (NPI) is 1033728613, issued on Jul 29, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Sierra Gillis located?
The NPPES record lists a practice address at 15000 Gratiot Ave, Detroit, MI, 48205. Phone: (313) 423-3067. Providers update this record themselves, so call before visiting.
How can I verify Sierra Gillis's license?
NPPES lists Michigan license number 6352000029, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.