Ronald L. Swaab, M.D.
Hematology & Oncology Physician · Pottstown, PA
Ronald L. Swaab, M.D. is a hematology & oncology physician with a practice address in Pottstown, Pennsylvania, and NPI 1134129869, issued on Jul 22, 2005. Check the license (Pennsylvania MD049577L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Ronald L. Swaab
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD049577L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1591 Medical Dr, Pottstown, PA 19464
- Phone
- (610) 326-8005
- Enumerated
- Jul 22, 2005
- Record last updated
- Jul 13, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (610) 327-9629
- Medicare enrollment
- Enrolled (PECOS I20041018001012); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 784 in Pennsylvania → Look up another NPI →
Also registered at 1591 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ronald L. Swaab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD049577LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
684 Medicare Part D claims for 134 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 107 claims were for opioids.
Most prescribed
- Oxycodone Hcl63 claims
- Anastrozole62 claims
- Eliquis38 claims
- Exemestane34 claims
- Hydroxyurea30 claims
- Imatinib Mesylate30 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): 97.2 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).
Industry payments in 2024: $1,706.44
70 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Rittenhouse Hematology Oncology LLCGlen Mills, PA
- Satish A Shah MD PCGettysburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald L. Swaab among 784 hematology & oncology physician records in Pennsylvania
Ronald L. Swaab, M.D. 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 fileYes · 71% of these records are
- Graduated1990 · median 2004 among the 553 with a school on file
- Record last updated2016 · 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 Pottstown → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mohamed Ahmed, M.DPottstown, PA 194641811348931
- Wei Song, M.D.Pottstown, PA 194641104826825
- Debra Bensen-Kennedy, M.D.Phoenixville, PA 194601801058839
- Christopher Holroyde, M.D.Phoenixville, PA 194601609868348
- Richard Kosierowski, M.D.Lansdale, PA 194461215071519
- Allen Oliff, MDGwynedd Valley, PA 194371194193656
- Geoffrey Chan, M.D.Collegeville, PA 194261912962424
- Edward Balaban, D.O.Penllyn, PA 194221437129814
Common questions
What is Ronald L. Swaab, M.D.'s NPI number?
Ronald L. Swaab, M.D.'s National Provider Identifier (NPI) is 1134129869, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ronald L. Swaab, M.D. located?
The NPPES record lists a practice address at 1591 Medical Dr, Pottstown, PA, 19464. Phone: (610) 326-8005. Providers update this record themselves, so call before visiting.
How can I verify Ronald L. Swaab, M.D.'s license?
NPPES lists Pennsylvania license number MD049577L, 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 Ronald L. Swaab, M.D. prescribe under Medicare Part D?
In 2024, Ronald L. Swaab, M.D. had 684 Medicare Part D claims for 134 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ronald L. Swaab, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.2 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.