Carissa Lynn Werkheiser, PA
Physician Assistant · Allentown, PA
Carissa Lynn Werkheiser, PA is a physician assistant with a practice address in Allentown, Pennsylvania, and NPI 1003181397, issued on Mar 20, 2012. Check the license (Pennsylvania MA055245, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carissa Lynn Werkheiser
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- MA055245 PA
Self-reported in NPPES; status is on the state search - Practice location
- 798 Hausman RD, Allentown, PA 18104
- Phone
- (610) 871-3400
- Enumerated
- Mar 20, 2012
- Record last updated
- Dec 24, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (610) 871-5566
- Medicare enrollment
- Enrolled (PECOS I20120521000553); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 798 Hausman RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Carissa Lynn Werkheiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license MA055245Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average physician assistant in 2024
305 Medicare Part D claims for 241 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Prednisone43 claims
- Cephalexin36 claims
- Amoxicillin31 claims
- Paxlovid22 claims
- Methylprednisolone21 claims
- Albuterol Sulfate Hfa17 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.
Bills Medicare through one group practice
- Lehigh Valley Physician GroupAllentown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carissa Lynn Werkheiser among 8,020 physician assistant records in Pennsylvania
Carissa Lynn Werkheiser, PA is one of 8,020 physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 31% of them.
- NPI issued2012 · 31% of these records are older, 66% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2011 · median 2018 among the 5,313 with a school on file
- Record last updated2015 · 42% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
177 physician assistant records list a practice address in Allentown
They are 177 of the 5,904 NPPES records with a practice address in Allentown, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Allentown → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Laura Bielecki, PA-CAllentown, PA 181041770581365
- Patti Connolly, PHYSICIAN ASSISTANTAllentown, PA 181041992799985
- Heather Davis, PA-CAllentown, PA 181041376530402
- Rosanne Diaz, PA-CAllentown, PA 181041508880097
- Kathleen Ehrhardt, PACAllentown, PA 181041801851928
- Keith Holdren, PA-CAllentown, PA 181041902858202
- Brian Kephart, PHYSICIAN ASSISTANTAllentown, PA 181041093709099
- Melissa Knecht, P.A.-C.Allentown, PA 181041124026380
Common questions
What is Carissa Lynn Werkheiser, PA's NPI number?
Carissa Lynn Werkheiser, PA's National Provider Identifier (NPI) is 1003181397, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Carissa Lynn Werkheiser, PA located?
The NPPES record lists a practice address at 798 Hausman RD, Allentown, PA, 18104. Phone: (610) 871-3400. Providers update this record themselves, so call before visiting.
How can I verify Carissa Lynn Werkheiser, PA's license?
NPPES lists Pennsylvania license number MA055245, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Carissa Lynn Werkheiser, PA prescribe under Medicare Part D?
In 2024, Carissa Lynn Werkheiser, PA had 305 Medicare Part D claims for 241 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.