Individual
MARK H JOHNSTON
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
2112 HARRISBURG PIKE, SUITE 202, LANCASTER, PA 17601-2644
(717) 544-3500
(717) 544-3501
Mailing address
2112 HARRISBURG PIKE STE 202, LANCASTER, PA 17601-2644
(717) 869-4600
(717) 544-3501
Taxonomy
Speciality
Code
Description
License number
State
207RG0100X
Gastroenterology Physician
Primary
MD425522
PA
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
093677KKU
MEDICARE
PA
05
—
1012082120002
—
PA
05
—
1012082120004
—
PA
05
—
1012082120005
—
PA
01
—
P01832235
RR MEDICARE
PA
Enumeration date
11/15/2005
Last updated
06/13/2019
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Contact us