Colleen Wagner Hammerstone, PA-C
Physician Assistant · Allentown, PA
Colleen Wagner Hammerstone, PA-C is a physician assistant with a practice address in Allentown, Pennsylvania, and NPI 1285038166, issued on Oct 21, 2014. Check the license (Pennsylvania MA057209, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Colleen Wagner Hammerstone
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- MA057209 PA
0010-05326 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1250 S Cedar Crest Blvd Ste 110, Allentown, PA 18103
- Phone
- (610) 402-8900
- Enumerated
- Oct 21, 2014
- Record last updated
- Aug 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190708001498); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 1250 S Cedar Crest Blvd Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Colleen Wagner Hammerstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license MA057209Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average physician assistant in 2024
1,307 Medicare Part D claims for 487 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 473 claims were for opioids.
Most prescribed
- Oxycodone Hcl357 claims
- Amoxicillin234 claims
- Mupirocin220 claims
- Celecoxib203 claims
- Hydrocodone-Acetaminophen55 claims
- Methocarbamol55 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 2 group practices
- Lehigh Valley Physician GroupAllentown, PA
- Phoenix Rehabilitation And Health Services IncCranberry Township, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colleen Wagner Hammerstone among 8,020 physician assistant records in Pennsylvania
Colleen Wagner Hammerstone, PA-C 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 2014, is newer than 38% of them.
- NPI issued2014 · 38% of these records are older, 59% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2018 among the 5,313 with a school on file
- Record last updated2020 · 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
- Katherine Brown, PACAllentown, PA 181031972503936
- Joy Dupont, PAAllentown, PA 181031275578023
- Harold Felton, PA-CAllentown, PA 181031821041724
- Michael Figard, PHYSICIAN ASSISTANTAllentown, PA 181031427042415
- Rhonda Grieser, PAAllentown, PA 181031093706996
- William Harriman, P.A.Allentown, PA 181031710930144
- Diemhang Huynh-Younes, PA-CAllentown, PA 181031376515437
- Dana Ide, P.A.-C.Allentown, PA 181031861473217
Common questions
What is Colleen Wagner Hammerstone, PA-C's NPI number?
Colleen Wagner Hammerstone, PA-C's National Provider Identifier (NPI) is 1285038166, issued on Oct 21, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Colleen Wagner Hammerstone, PA-C located?
The NPPES record lists a practice address at 1250 S Cedar Crest Blvd Ste 110, Allentown, PA, 18103. Phone: (610) 402-8900. Providers update this record themselves, so call before visiting.
How can I verify Colleen Wagner Hammerstone, PA-C's license?
NPPES lists Pennsylvania license number MA057209, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Colleen Wagner Hammerstone, PA-C prescribe under Medicare Part D?
In 2024, Colleen Wagner Hammerstone, PA-C had 1,307 Medicare Part D claims for 487 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.