Theodore Hsu, DO
Physical Medicine & Rehabilitation Physician · Hummelstown, PA
Theodore Hsu, DO is a physical medicine & rehabilitation physician with a practice address in Hummelstown, Pennsylvania, and NPI 1134689979, issued on Mar 20, 2019. Check the license (Pennsylvania OS021013, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Theodore Hsu
- Credential
- DO
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License numbers
- OS021013 PA
OT020104 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1135 Olde W Chocolate Ave, Hummelstown, PA 17036
- Phone
- (717) 531-7010
- Enumerated
- Mar 20, 2019
- Record last updated
- Sep 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20230828001104); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 875 in Pennsylvania → Look up another NPI →
Also registered at 1135 Olde W Chocolate Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olajumoke Alex JimohPhysical Therapist1952265522
- Emily Beahan, DPTPhysical Therapist1922424910
- Kelsey Browning, OTR/LOccupational Therapist1306415393
- Erin Byler, MS, CCC-SLPSpeech-Language Pathologist1396163200
- Emily Carrier, MS, OTR/LOccupational Therapist1629498019
- Sophia Chas, M.S.Speech-Language Pathologist1700766177
Verify Theodore Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS021013Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
363 Medicare Part D claims for 76 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Baclofen27 claims
- Pregabalin22 claims
- Gabapentin19 claims
- Atorvastatin Calcium18 claims
- Pantoprazole Sodium16 claims
- Tamsulosin Hcl15 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): 71.8 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: $15.26
1 payment: food and beverage; the largest payer was Coloplast Corp. The 3,895 providers of this specialty with any payment received $1,237.86 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
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
- The Milton S Hershey Medical Center Physicians GroupHummelstown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theodore Hsu among 875 physical medicine & rehabilitation physician records in Pennsylvania
Theodore Hsu, DO is one of 875 physical medicine & rehabilitation physician records with a practice address in Pennsylvania. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 77% of them.
- NPI issued2019 · 77% of these records are older, 17% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2018 · median 2005 among the 451 with a school on file
- Record last updated2023 · 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 208100000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 physical medicine & rehabilitation physician records list a practice address in Hummelstown
They are 14 of the 322 NPPES records with a practice address in Hummelstown, and 875 physical medicine & rehabilitation physician records in Pennsylvania.
All 875 in Pennsylvania → Every provider in Hummelstown → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Thiru Annaswamy, M.D., M.A.Hummelstown, PA 170361083635353
- Prateek Grover, MDHummelstown, PA 170361023372380
- Justin Hong, MDHummelstown, PA 170361912161431
- Michael Kryger, M.D.Hummelstown, PA 170361699032474
- Lauren Llewellyn, PTAHummelstown, PA 170361801528674
- Whitney Norman, PTAHummelstown, PA 170361245840289
- William Pomilla, M.D.Hummelstown, PA 170361902041494
- Kendall Prowse, DOHummelstown, PA 170361528645751
Common questions
What is Theodore Hsu, DO's NPI number?
Theodore Hsu, DO's National Provider Identifier (NPI) is 1134689979, issued on Mar 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Theodore Hsu, DO located?
The NPPES record lists a practice address at 1135 Olde W Chocolate Ave, Hummelstown, PA, 17036. Phone: (717) 531-7010. Providers update this record themselves, so call before visiting.
How can I verify Theodore Hsu, DO's license?
NPPES lists Pennsylvania license number OS021013, 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 Theodore Hsu, DO prescribe under Medicare Part D?
In 2024, Theodore Hsu, DO had 363 Medicare Part D claims for 76 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is Theodore Hsu, DO's MIPS final score?
The 2023 MIPS final score is 71.8 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.