Frederick B. Johnson, MD PHD
Clinical Pathology/Laboratory Medicine Physician · Philadelphia, PA
Frederick B. Johnson, MD PHD is a clinical pathology/laboratory medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1962446872, issued on Jun 15, 2006. Check the license (Pennsylvania MD074014L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Frederick B. Johnson
- Credential
- MD PHD
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- MD074014L PA
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Spruce St, Philadelphia, PA 19104
- Phone
- (215) 662-6503
- Enumerated
- Jun 15, 2006
- Record last updated
- Feb 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 0018799200001 PA
- Medicare enrollment
- Enrolled (PECOS I20060509000559); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 86 in Pennsylvania → Look up another NPI →
Also registered at 3400 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Abbott, CRNPNurse Practitioner1396771689
- Michael Abboud, MDEmergency Medicine Physician1962820852
- Emily AbdelmessihPediatric Pharmacist1891612560
- Mohammed AbdullahStudent in an Organized Health Care Education/Training Program1013595495
- Amin Abedini, MDStudent in an Organized Health Care Education/Training Program1912609017
- Farid Aboharb, MD, PHDStudent in an Organized Health Care Education/Training Program1295595973
Verify Frederick B. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD074014LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frederick B. Johnson among 86 clinical pathology/laboratory medicine physician records in Pennsylvania
Frederick B. Johnson, MD PHD is one of 86 clinical pathology/laboratory medicine physician records with a practice address in Pennsylvania. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 38% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated1995 · median 1989 among the 36 with a school on file
- Record last updated2011 · 87% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Pennsylvania
There are 86 clinical pathology/laboratory medicine physician records in Pennsylvania.
All 86 in Pennsylvania → Every provider in Philadelphia → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Agata Bogusz, MDPhiladelphia, PA 191041891998407
- Kojo Elenitoba-Johnson, MDPhiladelphia, PA 191041912077330
- Dale Frank, MDPhiladelphia, PA 191041336185180
- Paul Howlett, M.D.Philadelphia, PA 191041104933514
- Jameel Iqbal, M.D.Philadelphia, PA 191041699937987
- Malek Kamoun, MDPhiladelphia, PA 191041588609010
- Eline Luning Prak, MDPhiladelphia, PA 191041669415907
- Stephen Master, MDPhiladelphia, PA 191041396780821
Common questions
What is Frederick B. Johnson, MD PHD's NPI number?
Frederick B. Johnson, MD PHD's National Provider Identifier (NPI) is 1962446872, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick B. Johnson, MD PHD located?
The NPPES record lists a practice address at 3400 Spruce St, Philadelphia, PA, 19104. Phone: (215) 662-6503. Providers update this record themselves, so call before visiting.
How can I verify Frederick B. Johnson, MD PHD's license?
NPPES lists Pennsylvania license number MD074014L, 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.
What is Frederick B. Johnson, MD PHD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.