Alyssa Katherine Koberstein, PA-C
Physician Assistant · Baltimore, MD
Alyssa Katherine Koberstein, PA-C is a physician assistant with a practice address in Baltimore, Maryland, and NPI 1780326850, issued on Apr 10, 2022. Check the license (Maryland C0009905, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alyssa Katherine Koberstein
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- C0009905 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 328-6110
- Enumerated
- Apr 10, 2022
- Record last updated
- Sep 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20220725003295); accepts Medicare assignment
- Entity
- Type 1 · individual
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Also registered at 22 S Greene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alyssa Katherine Koberstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0009905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average physician assistant in 2024
59 Medicare Part D claims for 40 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.02
1 payment: food and beverage; the largest payer was Leo Pharma Inc. 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.
One hospital affiliation
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Alyssa Katherine Koberstein among 3,224 physician assistant records in Maryland
Alyssa Katherine Koberstein, PA-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 2022, is newer than 76% of them.
- NPI issued2022 · 76% of these records are older, 19% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2022 · 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
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- Patricia DooleyBaltimore, MD 212011083708606
- Misa Francis, PA-CBaltimore, MD 212011598891053
- Saleem KhanBaltimore, MD 212011063506699
- Ralph Lloyd, PA-CBaltimore, MD 212011043274541
- Patricia Martin, P.A.Baltimore, MD 212011942215538
- Melissa McClain, PABaltimore, MD 212011629182340
Common questions
What is Alyssa Katherine Koberstein, PA-C's NPI number?
Alyssa Katherine Koberstein, PA-C's National Provider Identifier (NPI) is 1780326850, issued on Apr 10, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Katherine Koberstein, PA-C located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 328-6110. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Katherine Koberstein, PA-C's license?
NPPES lists Maryland license number C0009905, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Alyssa Katherine Koberstein, PA-C prescribe under Medicare Part D?
In 2024, Alyssa Katherine Koberstein, PA-C had 59 Medicare Part D claims for 40 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Alyssa Katherine Koberstein, PA-C's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.