NPI Portal NPI Lookup & Verification

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

Paul W Watanakunakorn, M.D.

Internal Medicine Physician in Youngstown, OH · enumerated 2006.

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

National Provider Identifier

1275563462

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Registry record

Entity type Individual (Type 1)
Name Paul W Watanakunakorn
Credential M.D.
Sex Male
Practice address Youngstown, OH, 44515
Phone (330) 797-9705
Fax (330) 270-5997
Enumeration date Jul 3, 2006
Last updated in NPPES Apr 20, 2008

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35076990 (OH) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
Z76990 Other OH SUMMACARE
000000280876 Other OH ANTHEM BC/BS
P00013192 Other OH RAILROAD MEDICARE
341341025030 Other OH CARESOURCE
Q034637 Other OH HOMETOWN
001467940 Other OH HIGHMARK BC/BS PA
225394 Other OH HEALTH ASSURANCE
407998 Other OH UNITED HEALTHCARE
2300585 Medicaid OH -

What is an NPI number?

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

What is the NPI number for Paul Watanakunakorn?
The National Provider Identifier (NPI) for Paul Watanakunakorn is 1275563462, a Type 1 (individual) record in the CMS NPPES registry.
Where does Paul Watanakunakorn practice?
The practice location on file with NPPES is in Youngstown, OH. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-20.