Mark S. Hsiao, M.D.
Orthopaedic Surgery of the Spine Physician · Alhambra, CA
Mark S. Hsiao, M.D. is an orthopaedic surgery of the spine physician with a practice address in Alhambra, California, and NPI 1114008984, issued on Oct 18, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark S. Hsiao
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery of the Spine Physician 207XS0117X
- License number
- MD61024463 WA
Self-reported in NPPES; status is on the state search - Practice location
- 707 S Garfield Ave FL 2, Alhambra, CA 91801
- Phone
- (626) 282-1600
- Enumerated
- Oct 18, 2006
- Record last updated
- May 7, 2024
- Fax
- (626) 656-1264
- Medicare enrollment
- Enrolled (PECOS I20220930000958); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery of the spine physician records → All 314 in California → Look up another NPI →
Also registered at 707 S Garfield Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph FungOrthopaedic Surgery Physician1649874504
- Jonathan KoeSurgical Physician Assistant1053177147
- Vu Le, MDOrthopaedic Foot and Ankle Surgery Physician1396227153
- Jose Robaina, MDSports Medicine (Orthopaedic Surgery) Physician1780181107
- Alan Sze, PA-CPhysician Assistant1083450548
- Adrian Wu, MDOrthopaedic Surgery of the Spine Physician1194388280
Verify Mark S. Hsiao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average orthopaedic surgery of the spine physician in 2024
1,127 Medicare Part D claims for 406 beneficiaries, against an average of 381 among the 1,714 providers of this specialty who prescribed in Part D. 63 claims were for opioids.
Most prescribed
- Celecoxib447 claims
- Gabapentin385 claims
- Meloxicam173 claims
- Hydrocodone-Acetaminophen37 claims
- Ondansetron Hcl29 claims
- Tramadol Hcl20 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: $749.43
12 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 1,726 providers of this specialty with any payment received $34,071.55 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 one group practice
- Southern California Permanente Medical GroupOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark S. Hsiao among 314 orthopaedic surgery of the spine physician records in California
Mark S. Hsiao, M.D. is one of 314 orthopaedic surgery of the spine physician records with a practice address in California. 87% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 53% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2003 among the 226 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0117X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery of the Spine Physician providers in California
There are 314 orthopaedic surgery of the spine physician records in California.
All 314 in California → Every provider in Alhambra → Orthopaedic Surgery of the Spine Physician nationwide →
The 8 orthopaedic surgery of the spine physician records with the nearest ZIP codes
- Adrian Wu, MDAlhambra, CA 918011194388280
- Kambiz Hannani, MDWest Covina, CA 917901083782478
- Jonathan Acosta, MDRancho Cucamonga, CA 917301669001376
- Chris Tang, MDBaldwin Park, CA 917061073672648
- Matthew Follett, MDChula Vista, CA 919141316443849
- Raymond Linovitz, M.D.Encinitas, CA 920241912090853
- Timothy Peppers, M.D.Encinitas, CA 920241437241981
- Daniel Barba, M.D.Escondido, CA 920251407128580
Common questions
What is Mark S. Hsiao, M.D.'s NPI number?
Mark S. Hsiao, M.D.'s National Provider Identifier (NPI) is 1114008984, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Hsiao, M.D. located?
The NPPES record lists a practice address at 707 S Garfield Ave FL 2, Alhambra, CA, 91801. Phone: (626) 282-1600. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Hsiao, M.D.'s license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark S. Hsiao, M.D. prescribe under Medicare Part D?
In 2024, Mark S. Hsiao, M.D. had 1,127 Medicare Part D claims for 406 beneficiaries; the average among orthopaedic surgery of the spine physician prescribers was 381. 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.