NPPES file of Aug 9, 2026

Heather L. Lockner, DO

Internal Medicine Physician · Berwyn, PA

Heather L. Lockner, DO is an internal medicine physician with a practice address in Berwyn, Pennsylvania, and NPI 1295774503, issued on Jun 5, 2006. Check the license (Pennsylvania OS012393, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295774503
Name
Heather L. Lockner
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS012393 PA
Self-reported in NPPES; status is on the state search
Practice location
1001 Chesterbrook Blvd, Berwyn, PA 19312
Phone
(610) 576-7515
Enumerated
Jun 5, 2006
Record last updated
Sep 30, 2025
Medicare enrollment
Enrolled (PECOS I20050624000128); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1001 Chesterbrook Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jana Abraham, MDEndocrinology, Diabetes & Metabolism Physician1043663966
  2. Ronald Barnett, MDPulmonary Disease Physician1477515815
  3. Lisa Broody, CRNPFamily Nurse Practitioner1487737417
  4. Et-Tsu Chen, MDRadiation Oncology Physician1508894510
  5. Margaret Corboy, MDInternal Medicine Physician1891956280
  6. Louis Destefano, MDFamily Medicine Physician1366474694

Verify Heather L. Lockner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS012393
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4% fewer Medicare Part D claims than the average internal medicine physician in 2024

3,064 Medicare Part D claims for 317 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 75 claims were for opioids.

  1. Heather Lockner3,064
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium157 claims
  2. Amlodipine Besylate132 claims
  3. Metoprolol Succinate111 claims
  4. Pantoprazole Sodium102 claims
  5. Levothyroxine Sodium101 claims
  6. Sertraline Hcl99 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.

Industry payments in 2024: $197.74

9 payments; by number, the most common kind was food and beverage; the largest payer was Biogen, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heather Lockner$197.74
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Clinical Care Associates OF The University OF Pennsylvania Health.Berwyn, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Heather L. Lockner among 7,300 internal medicine physician records in Pennsylvania

Heather L. Lockner, DO 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
  • Graduated2001 · median 2008 among the 4,208 with a school on file
  • Record last updated2025 · 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).

3 internal medicine physician records list a practice address in Berwyn

They are 3 of the 209 NPPES records with a practice address in Berwyn, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Margaret Corboy, MDBerwyn, PA 193121891956280
  2. Daniel Everitt, M.D.Berwyn, PA 193121457525206
  3. Isaac Hammond, M.D.Chadds Ford, PA 193171649475674
  4. Maia Tinder, MDChadds Ford, PA 193171902361363
  5. Sunila Byreddy, MDCoatesville, PA 193201275594541
  6. Sheila Chellappa, M.D.Coatesville, PA 193201235144999
  7. Lisette Cooper, MDCoatesville, PA 193201104800770
  8. Indranee Elanchenny, M.DCoatesville, PA 193201003804501

Common questions

What is Heather L. Lockner, DO's NPI number?

Heather L. Lockner, DO's National Provider Identifier (NPI) is 1295774503, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather L. Lockner, DO located?

The NPPES record lists a practice address at 1001 Chesterbrook Blvd, Berwyn, PA, 19312. Phone: (610) 576-7515. Providers update this record themselves, so call before visiting.

How can I verify Heather L. Lockner, DO's license?

NPPES lists Pennsylvania license number OS012393, 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 Heather L. Lockner, DO prescribe under Medicare Part D?

In 2024, Heather L. Lockner, DO had 3,064 Medicare Part D claims for 317 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.