Beth Irene Esterbrook, M.D.
Internal Medicine Physician · Ephrata, PA
Beth Irene Esterbrook, M.D. is an internal medicine physician with a practice address in Ephrata, Pennsylvania, and NPI 1437160736, issued on Aug 11, 2006. Check the license (Pennsylvania MD426442, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Beth Irene Esterbrook
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD426442 PA
Self-reported in NPPES; status is on the state search - Practice location
- 446 N Reading RD, Ephrata, PA 17522
- Phone
- (717) 733-6546
- Enumerated
- Aug 11, 2006
- Record last updated
- Jul 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (717) 733-6011
- Medicare enrollment
- Enrolled (PECOS I20110504000490); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 446 N Reading RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ammar Alimam, MDCritical Care Medicine (Internal Medicine) Physician1770542946
- Lauren Arrick, CRNPFamily Nurse Practitioner1578222071
- Ericka Berger, MDFamily Medicine Physician1942251871
- Carol Blake, PA-CPhysician Assistant1538208533
- Gregory Brown, M.D.Pulmonary Disease Physician1881856334
Verify Beth Irene Esterbrook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD426442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
11,734 Medicare Part D claims for 1,079 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 365 claims were for opioids.
Most prescribed
- Atorvastatin Calcium543 claims
- Levothyroxine Sodium507 claims
- Amlodipine Besylate463 claims
- Omeprazole328 claims
- Lisinopril318 claims
- Metoprolol Succinate318 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
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
- Wellspan Medical GroupEphrata, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Beth Irene Esterbrook among 7,300 internal medicine physician records in Pennsylvania
Beth Irene Esterbrook, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1999 · median 2008 among the 4,208 with a school on file
- Record last updated2015 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 internal medicine physician records list a practice address in Ephrata
They are 13 of the 574 NPPES records with a practice address in Ephrata, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Ephrata → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Il Chon, M.D.Ephrata, PA 175221538173869
- Shaimaa El Shaarawy, MD, PHD, MSEphrata, PA 175221215533187
- Traci Kohl, MDEphrata, PA 175221841206919
- William Loretan, DOEphrata, PA 175221245244565
- Abdul Majeed, MDEphrata, PA 175221720392012
- Marino Mallozzi, MDEphrata, PA 175221558377648
- Susanna Margaryan, MDEphrata, PA 175221225221930
- Richard Mellinger, M.D.Ephrata, PA 175221689680738
Common questions
What is Beth Irene Esterbrook, M.D.'s NPI number?
Beth Irene Esterbrook, M.D.'s National Provider Identifier (NPI) is 1437160736, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Beth Irene Esterbrook, M.D. located?
The NPPES record lists a practice address at 446 N Reading RD, Ephrata, PA, 17522. Phone: (717) 733-6546. Providers update this record themselves, so call before visiting.
How can I verify Beth Irene Esterbrook, M.D.'s license?
NPPES lists Pennsylvania license number MD426442, 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 Beth Irene Esterbrook, M.D. prescribe under Medicare Part D?
In 2024, Beth Irene Esterbrook, M.D. had 11,734 Medicare Part D claims for 1,079 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.