Karla M. Ludwig, MD
Hematology & Oncology Physician · Ephrata, PA
Karla M. Ludwig, MD is a hematology & oncology physician with a practice address in Ephrata, Pennsylvania, and NPI 1225021850, issued on Aug 30, 2005. Check the license (Pennsylvania 036017E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Karla M. Ludwig
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 036017E PA
Self-reported in NPPES; status is on the state search - Practice location
- 460 N Reading RD, Ephrata, PA 17522
- Phone
- (717) 721-4840
- Enumerated
- Aug 30, 2005
- Record last updated
- Jun 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (717) 738-3558
- Medicaid ID
- 0011850260002 PA
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 784 in Pennsylvania → Look up another NPI →
Also registered at 460 N Reading RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Giridhar Adiga, MDHematology & Oncology Physician1356374417
- Jaenell Ditsious, FNP-BCHematology & Oncology Physician1235417262
- Kaitlyn Garnto, CRNPAdult Health Nurse Practitioner1851925945
- Lesley Hughes, MDRadiation Oncology Physician1508818808
- Allison HunyaraNurse Practitioner1417834292
- Mohammed Hussain, MDRadiation Oncology Physician1225126535
Verify Karla M. Ludwig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license 036017ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
84 Medicare Part D claims for 18 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Imbruvica24 claims
- Allopurinol21 claims
- Hydroxyurea19 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.
Karla M. Ludwig among 784 hematology & oncology physician records in Pennsylvania
Karla M. Ludwig, MD is one of 784 hematology & oncology physician records with a practice address in Pennsylvania. 83% 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, 87% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Pennsylvania
There are 784 hematology & oncology physician records in Pennsylvania.
All 784 in Pennsylvania → Every provider in Ephrata → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Giridhar Adiga, MDEphrata, PA 175221356374417
- Jaenell Ditsious, FNP-BCEphrata, PA 175221235417262
- Cheryl Gardner, DOEphrata, PA 175221205859212
- Patrick Judson, MDEphrata, PA 175221477552289
- Nick Onyemeke, M.D.Ephrata, PA 175221730410549
- So Park, MDEphrata, PA 175221205974706
- Naeem Latif, MDLititz, PA 175431154394690
- Shyam Balepur, M.D.Lancaster, PA 176011265410062
Common questions
What is Karla M. Ludwig, MD's NPI number?
Karla M. Ludwig, MD's National Provider Identifier (NPI) is 1225021850, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karla M. Ludwig, MD located?
The NPPES record lists a practice address at 460 N Reading RD, Ephrata, PA, 17522. Phone: (717) 721-4840. Providers update this record themselves, so call before visiting.
How can I verify Karla M. Ludwig, MD's license?
NPPES lists Pennsylvania license number 036017E, 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 Karla M. Ludwig, MD prescribe under Medicare Part D?
In 2024, Karla M. Ludwig, MD had 84 Medicare Part D claims for 18 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.