Jessica O'Brien, P.A.-C.
Physician Assistant · Baltimore, MD
Jessica O'Brien, P.A.-C. is a physician assistant with a practice address in Baltimore, Maryland, and NPI 1902204340, issued on Dec 17, 2014. Check the license (Maryland C0008241, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jessica O'Brien
- Credential
- P.A.-C.
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C0008241 MD
7734 AZ
PA52917 CA
PA031097 DC
2022042041 MO
and 3 more
Self-reported in NPPES; status is on the state search - Practice location
- 5100 Eastern Ave, Baltimore, MD 21224
- Phone
- (410) 814-4500
- Enumerated
- Dec 17, 2014
- Record last updated
- Dec 8, 2025
- Medicare enrollment
- Enrolled (PECOS I20251210003333); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 5100 Eastern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Natelaine Fripp, MDFamily Medicine Physician1205970241
- Benjamin Gillingham, MDFamily Medicine Physician1922636224
- Bryan GrayPhysician Assistant1588095285
Verify Jessica O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0008241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average physician assistant in 2024
2,103 Medicare Part D claims for 491 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Atorvastatin Calcium203 claims
- Rosuvastatin Calcium198 claims
- Metoprolol Succinate150 claims
- Mounjaro126 claims
- Amlodipine Besylate102 claims
- Clopidogrel63 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $144.85
7 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Patient First Maryland Medical Group PLLCBaltimore, MD
- Sridhar Chatrathi MD PCGreenbelt, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jessica O'Brien among 3,224 physician assistant records in Maryland
Jessica O'Brien, P.A.-C. 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 2014, is newer than 42% of them.
- NPI issued2014 · 42% of these records are older, 54% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2014 · median 2017 among the 1,974 with a school on file
- Record last updated2025 · 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).
1,135 physician assistant records list a practice address in Baltimore
They are 1,135 of the 35,183 NPPES records with a practice address in Baltimore, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Baltimore → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Carolyn Bacal, P.A.-C.Baltimore, MD 212241568427342
- Lisa Barkey, P.A.-C.Baltimore, MD 212241487619052
- Janine Coy, P.A.Baltimore, MD 212241629054812
- Erin Fitzpatrick, P.A.-C.Baltimore, MD 212241154372225
- Robert Gomon, P.A.-C.Baltimore, MD 212241992758502
- Sherwood Holloway, P.A.-C.Baltimore, MD 212241871546614
- Colleen Howland, PA-CBaltimore, MD 212241346205051
- Andra Love, P.A.-CBaltimore, MD 212241235186776
Common questions
What is Jessica O'Brien, P.A.-C.'s NPI number?
Jessica O'Brien, P.A.-C.'s National Provider Identifier (NPI) is 1902204340, issued on Dec 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Jessica O'Brien, P.A.-C. located?
The NPPES record lists a practice address at 5100 Eastern Ave, Baltimore, MD, 21224. Phone: (410) 814-4500. Providers update this record themselves, so call before visiting.
How can I verify Jessica O'Brien, P.A.-C.'s license?
NPPES lists Maryland license number C0008241, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Jessica O'Brien, P.A.-C. prescribe under Medicare Part D?
In 2024, Jessica O'Brien, P.A.-C. had 2,103 Medicare Part D claims for 491 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.