Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Tammy K Haslett, PH D

Psychologist in Johnstown, PA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043493521

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Registry record

Entity type Individual (Type 1)

Name Tammy K Haslett

Credential PH D

Sex Female

Practice address Johnstown, PA, 15904

Phone (814) 266-5238

Fax (814) 266-1762

Enumeration date Dec 7, 2007

Last updated in NPPES Aug 22, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PS008994L (PA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
331004	Other	PA	HIGHMARK BLUE CROSS
0017729510006	Medicaid	PA	-
0017729510007	Medicaid	PA	-
1025765450004	Medicaid	PA	-
1025765450003	Medicaid	PA	-

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A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Tammy Haslett?

Tammy Haslett is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Melissa Leonardis Physician Assistant · Johnstown, PA NPI 1396716601 John Onderko Physician Assistant · Johnstown, PA NPI 1548231863 Charles Stotler Family Medicine Physician · Johnstown, PA NPI 1114998333 Footsteps Psychological Services Community/Behavioral Health Agency · Johnstown, PA NPI 1023074192 Charles W. Stotler, M.D. Family Medicine Physician · Johnstown, PA NPI 1134258379 Footsteps Psychological Services Professional Counselor · Johnstown, PA NPI 1053757518 Footsteps Psychological Services Psychologist · Johnstown, PA NPI 1669804571

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-22.