NPPES file of Aug 9, 2026

Joanna Marie Klosek Longo

Physician Assistant · Catonsville, MD

Joanna Marie Klosek Longo is a physician assistant with a practice address in Catonsville, Maryland, and NPI 1063077303, issued on May 2, 2019. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063077303
Name
Joanna Marie Klosek Longo
Primary taxonomy
Physician Assistant 363A00000X
Practice location
424 Montemar Ave, Catonsville, MD 21228
Phone
(443) 690-5894
Enumerated
May 2, 2019
Record last updated
Oct 24, 2024
Medicare enrollment
Enrolled (PECOS I20230130000724); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Joanna Marie Klosek Longo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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Bills Medicare through one group practice

  1. Southeastern Intensivist Services PCNorth Chesterfield, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joanna Marie Klosek Longo among 3,224 physician assistant records in Maryland

Joanna Marie Klosek Longo is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 62% of them.

  • NPI issued2019 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2019 · median 2017 among the 1,974 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 physician assistant records list a practice address in Catonsville

They are 24 of the 1,023 NPPES records with a practice address in Catonsville, and 3,224 physician assistant records in Maryland.

The 8 physician assistant records with the nearest ZIP codes

  1. Felix Adeyemi, PHYSICIAN ASSISSTANTCatonsville, MD 212281801089123
  2. Ingrid Carlsson, PA-CCatonsville, MD 212281417258583
  3. Sharon CrumCatonsville, MD 212281780951889
  4. James Donaldson, PA-CCatonsville, MD 212281598157596
  5. John Greco, PA-CCatonsville, MD 212281811954167
  6. Sandra Jones, PA-CCatonsville, MD 212281235149816
  7. Michael Miller, PA-CCatonsville, MD 212281730580960
  8. Jill O'Malley, PA-CCatonsville, MD 212281942679709

Common questions

What is Joanna Marie Klosek Longo's NPI number?

Joanna Marie Klosek Longo's National Provider Identifier (NPI) is 1063077303, issued on May 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Joanna Marie Klosek Longo located?

The NPPES record lists a practice address at 424 Montemar Ave, Catonsville, MD, 21228. Phone: (443) 690-5894. Providers update this record themselves, so call before visiting.

How can I verify Joanna Marie Klosek Longo's license?

Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

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.