Cassie J. Harrington, MD
Family Medicine Physician · Erie, PA
Cassie J. Harrington, MD is a family medicine physician with a practice address in Erie, Pennsylvania, and NPI 1538164199, issued on Jun 20, 2005. Check the license (Pennsylvania MD071009L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Cassie J. Harrington
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD071009L PA
Self-reported in NPPES; status is on the state search - Practice location
- 5241 Buffalo RD, Erie, PA 16510
- Phone
- (814) 877-5100
- Enumerated
- Jun 20, 2005
- Record last updated
- Aug 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (814) 877-5121
- Medicaid ID
- 0018600340005 PA
- Medicare enrollment
- Enrolled (PECOS I20040102000680); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 5241 Buffalo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Almquist, MDFamily Medicine Physician1568460467
- Donna Barretta, CRNPFamily Nurse Practitioner1780815514
- Karen BengelPhysician Assistant1255686382
- Angela Bootes, CRNPNurse Practitioner1326511163
- Sam Kurien, MDFamily Medicine Physician1649275272
- Ivan Loker, MDFamily Medicine Physician1144682527
Verify Cassie J. Harrington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD071009LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average family medicine physician in 2024
6,176 Medicare Part D claims for 480 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 41 claims were for opioids.
Most prescribed
- Atorvastatin Calcium589 claims
- Lisinopril326 claims
- Amlodipine Besylate237 claims
- Levothyroxine Sodium233 claims
- Rosuvastatin Calcium214 claims
- Sertraline Hcl186 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Keystone Rehabilitation Systems IncErie, PA
- Regional Health Services IncErie, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassie J. Harrington among 7,483 family medicine physician records in Pennsylvania
Cassie J. Harrington, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1998 · median 2005 among the 4,529 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
219 family medicine physician records list a practice address in Erie
They are 219 of the 5,083 NPPES records with a practice address in Erie, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Erie → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Almquist, MDErie, PA 165101568460467
- Mitchell Humphrey, DOErie, PA 165101538168315
- Allan Johnson, D.O.Erie, PA 165101235132812
- Sam Kurien, MDErie, PA 165101649275272
- Mark Masteller, DOErie, PA 165101861470163
- Zengling Peng, MDErie, PA 165101174501357
- Debora Radder, MDErie, PA 165101598760159
- Christie RayErie, PA 165101689668055
Common questions
What is Cassie J. Harrington, MD's NPI number?
Cassie J. Harrington, MD's National Provider Identifier (NPI) is 1538164199, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Cassie J. Harrington, MD located?
The NPPES record lists a practice address at 5241 Buffalo RD, Erie, PA, 16510. Phone: (814) 877-5100. Providers update this record themselves, so call before visiting.
How can I verify Cassie J. Harrington, MD's license?
NPPES lists Pennsylvania license number MD071009L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassie J. Harrington, MD prescribe under Medicare Part D?
In 2024, Cassie J. Harrington, MD had 6,176 Medicare Part D claims for 480 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Cassie J. Harrington, MD's MIPS final score?
The 2023 MIPS final score is 79.6 of 100, reported for the practice group. 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.