NPPES file of Aug 9, 2026

Heather A. Olex, DO

Internal Medicine Physician · Newtown Square, PA

Heather A. Olex, DO is an internal medicine physician with a practice address in Newtown Square, Pennsylvania, and NPI 1689681918, issued on Aug 1, 2006. Check the license (Pennsylvania OS013523, 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
1689681918
Name
Heather A. Olex
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS013523 PA
Self-reported in NPPES; status is on the state search
Practice location
3544 West Chester Pike, Newtown Square, PA 19073
Phone
(610) 526-4097
Enumerated
Aug 1, 2006
Record last updated
Jan 4, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
101685400 PA
Medicare enrollment
Enrolled (PECOS I20060925000190); may accept Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2004
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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Verify Heather A. Olex 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 OS013523
    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

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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Heather Olex14
  2. Specialty average3,176

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.

Heather A. Olex among 7,300 internal medicine physician records in Pennsylvania

Heather A. Olex, 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
  • Graduated2004 · median 2008 among the 4,208 with a school on file
  • Record last updated2018 · 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).

21 internal medicine physician records list a practice address in Newtown Square

They are 21 of the 425 NPPES records with a practice address in Newtown Square, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sridevi Allu, M.D.Newtown Square, PA 190731982762183
  2. Robert Corrato, M.D.Newtown Square, PA 190731003827072
  3. Padmini Harigopal, M.DNewtown Square, PA 190731710954599
  4. James Harkins, MDNewtown Square, PA 190731447250972
  5. Madeleine Heaney, MDNewtown Square, PA 190731235231291
  6. Praphulla Hebbalalu, M.D.Newtown Square, PA 190731174549331
  7. Diane House, MDNewtown Square, PA 190731699888461
  8. Thomas Lawrence, MDNewtown Square, PA 190731861463507

Common questions

What is Heather A. Olex, DO's NPI number?

Heather A. Olex, DO's National Provider Identifier (NPI) is 1689681918, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather A. Olex, DO located?

The NPPES record lists a practice address at 3544 West Chester Pike, Newtown Square, PA, 19073. Phone: (610) 526-4097. Providers update this record themselves, so call before visiting.

How can I verify Heather A. Olex, DO's license?

NPPES lists Pennsylvania license number OS013523, 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 A. Olex, DO prescribe under Medicare Part D?

In 2024, Heather A. Olex, DO had 14 Medicare Part D claims; 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.