Christopher Robert Johnston, DO
Critical Care Medicine (Internal Medicine) Physician · Philadelphia, PA
Christopher Robert Johnston, DO is a critical care medicine (internal medicine) physician with a practice address in Philadelphia, Pennsylvania, and NPI 1548589948, issued on May 25, 2010. Check the license (Pennsylvania OS017185, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Christopher Robert Johnston
- Credential
- DO
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- OS017185 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3998 Red Lion RD Ste 213, Philadelphia, PA 19114
- Phone
- (215) 938-7730
- Enumerated
- May 25, 2010
- Record last updated
- Jun 29, 2022
- Medicare enrollment
- Enrolled (PECOS I20260102000041); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 332 in Pennsylvania → Look up another NPI →
Also registered at 3998 Red Lion RD Ste 213
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley AbrahamSurgical Physician Assistant1568220606
- Laura Ayd, PA-CSurgical Physician Assistant1770054702
- Jesse Victor, M.D.Neurology Physician1851738702
Verify Christopher Robert Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS017185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Access Telecare PLLCMountain Brk, AL
- Methodist Associates IN Healthcare, IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Robert Johnston among 332 critical care medicine (internal medicine) physician records in Pennsylvania
Christopher Robert Johnston, DO is one of 332 critical care medicine (internal medicine) physician records with a practice address in Pennsylvania. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 53% of them.
- NPI issued2010 · 53% of these records are older, 43% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2010 · median 2007 among the 282 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Pennsylvania
There are 332 critical care medicine (internal medicine) physician records in Pennsylvania.
All 332 in Pennsylvania → Every provider in Philadelphia → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Zachary Messina, D.O.Philadelphia, PA 191141336674498
- Katelyn Phelps, D.O.Philadelphia, PA 191141194111880
- Nelson Ferrer, MDPhiladelphia, PA 191111083729925
- Inamul Khan, M.DPhiladelphia, PA 191111265726939
- Belinda Rivera-Lebron, MDPhiladelphia, PA 191111801053822
- Lleras Samuels, MDPhiladelphia, PA 191181225026487
- Lauren Catalano, MDPhiladelphia, PA 191071417118415
- Robert Hilton, M.D.Philadelphia, PA 191071417496035
Common questions
What is Christopher Robert Johnston, DO's NPI number?
Christopher Robert Johnston, DO's National Provider Identifier (NPI) is 1548589948, issued on May 25, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Robert Johnston, DO located?
The NPPES record lists a practice address at 3998 Red Lion RD Ste 213, Philadelphia, PA, 19114. Phone: (215) 938-7730. Providers update this record themselves, so call before visiting.
How can I verify Christopher Robert Johnston, DO's license?
NPPES lists Pennsylvania license number OS017185, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.