Ariel Palanca, M.D.
Orthopaedic Surgery Physician · Stanford, CA
Ariel Palanca, M.D. is an orthopaedic surgery physician with a practice address in Stanford, California, and NPI 1629203971, issued on May 15, 2009. Check the license (California A114257, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ariel Palanca
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A114257 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Drive, Stanford, CA 94305
- Phone
- (650) 721-7638
- Enumerated
- May 15, 2009
- Record last updated
- Sep 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150128002198); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 300 Pasteur Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gita Abhiraman, MD, PHDStudent in an Organized Health Care Education/Training Program1477354579
- Alexa Allen, MDStudent in an Organized Health Care Education/Training Program1841057064
- Matthew Anderson, MDStudent in an Organized Health Care Education/Training Program1952104895
- Yarl Balachandran, MDStudent in an Organized Health Care Education/Training Program1063822179
- Hunter Bennett, PHDStudent in an Organized Health Care Education/Training Program1487356507
- Stanley Bradshaw, MSStudent in an Organized Health Care Education/Training Program1215518840
Verify Ariel Palanca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
373 Medicare Part D claims for 125 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 135 claims were for opioids.
Most prescribed
- Gabapentin171 claims
- Oxycodone Hcl101 claims
- Tramadol Hcl17 claims
- Ibuprofen11 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 MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $215,828.91
200 payments; by number, the most common kind was travel and lodging; the largest payer was MedShape, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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
- Arch Health Partners IncEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariel Palanca among 2,276 orthopaedic surgery physician records in California
Ariel Palanca, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2004 · median 2003 among the 1,347 with a school on file
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X 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 Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Stanford → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Raffi Avedian, MDStanford, CA 943051821261371
- Michael Bellino, M.D.Stanford, CA 943051326134909
- Angus Don, MDStanford, CA 943051720267354
- Holly Haight, M.D.Stanford, CA 943051083693923
- Nathan Hart, M.D.Stanford, CA 943051710174180
- Steven Isono, MDStanford, CA 943051548222128
- Michael Kelly, MDStanford, CA 943051508997420
- Arthur Lee, M.D.Stanford, CA 943051265629638
Common questions
What is Ariel Palanca, M.D.'s NPI number?
Ariel Palanca, M.D.'s National Provider Identifier (NPI) is 1629203971, issued on May 15, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Palanca, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Drive, Stanford, CA, 94305. Phone: (650) 721-7638. Providers update this record themselves, so call before visiting.
How can I verify Ariel Palanca, M.D.'s license?
NPPES lists California license number A114257, as entered by the provider. 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 Ariel Palanca, M.D. prescribe under Medicare Part D?
In 2024, Ariel Palanca, M.D. had 373 Medicare Part D claims for 125 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Ariel Palanca, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.2 of 100. 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.