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

Mark Carless Stachel, M.D.

Internal Medicine Physician in Malvern, OH · enumerated 2005.

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

National Provider Identifier

1215930946

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark Carless Stachel

Credential M.D.

Sex Male

Practice address Malvern, OH, 44644

Phone (330) 489-1477

Fax (330) 430-6925

Enumeration date May 27, 2005

Last updated in NPPES Dec 19, 2020

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 35060372 (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
1001	Other	-	SUMMA CARE
341684794	Other	-	TAX ID
000000136651	Other	-	BCBS
110050485	Other	-	RR MEDICARE
0839874	Medicaid	OH	-
34168479400	Other	-	WC

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

How do I verify Mark Stachel's NPI record?

Cross-check NPI 1215930946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1215930946 active?

Yes, as of the latest NPPES snapshot, NPI 1215930946 is active (record last updated 2020-12-19).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-19.