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

Stephen H Mascio, D.O.

Family Medicine Physician in Follansbee, WV · enumerated 2005.

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

National Provider Identifier

1790786853

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Stephen H Mascio

Credential D.O.

Sex Male

Practice address Follansbee, WV, 26037

Phone (304) 527-1670

Fax (304) 527-1672

Enumeration date Aug 10, 2005

Last updated in NPPES Feb 12, 2026

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 1439 (WV) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 34006186 (OH) Secondary

207QS1201X Sleep Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 1439 (WV) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
000000667A	Other	-	UPMC
66588	Other	WV	CARELINK HEALTH PLANS
WV9999	Other	-	MUTUAL OF OMAHA COMPANIES
000000319438	Other	OH	ANTHEM BCBS
001464699	Other	PA	HIGHMARK BLUE CROSS
001705867	Other	WV	MSBCBS
020643708	Other	WV	WORKER'S COMPENSATION
02064370800	Other	OH	1-888-OHIO COMP
02064370800	Other	OH	MANAGED MEDICAL ASSURANCE
02064370800	Other	OH	COMPMANAGEMENT HEALTH SYSTEM
104698	Other	PA	UPMC
1060493	Other	WV	SEDGWICK CLAIMS MANAGEMENT SERVICES, INC.
020643708 A01	Other	OH	MEDICAL MUTUAL
020643708001	Other	OH	MEDICAL MUTUAL
205314	Other	-	CARELINK HEALTH PLANS
279582	Other	-	MAMSI
000000117353	Other	OH	UNISON HEALTH PLAN
02064370800	Other	OH	WORKER'S COMPENSATION
02064370800	Other	OH	COMPMANAGEMENT
0206437080001	Other	-	CIGNA

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1790786853 active?

Yes, as of the latest NPPES snapshot, NPI 1790786853 is active (record last updated 2026-02-12).

How do I verify Stephen Mascio's NPI record?

Cross-check NPI 1790786853 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-12.