Stephen Chow, MD
Orthopaedic Surgery Physician · Apple Valley, CA
Stephen Chow, MD is an orthopaedic surgery physician with a practice address in Apple Valley, California, and NPI 1447296652, issued on Jun 22, 2006. Check the license (California A63842, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Chow
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A63842 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18095 US Highway 18, Apple Valley, CA 92307
- Phone
- (760) 242-8238
- Enumerated
- Jun 22, 2006
- Record last updated
- Oct 30, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (760) 242-8282
- Medicaid ID
- 00A638420 CA
- Medicare enrollment
- Enrolled (PECOS I20050120000428); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1996
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 18095 US Highway 18
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vicki Brooks, HEARING AID DISPENSEHearing Instrument Specialist1497820013
- Thomas Hoffmann, M.D.MOHS-Micrographic Surgery Physician1306885140
- Elsa Uresti, FNP-CNurse Practitioner1164204061
Verify Stephen Chow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
433 Medicare Part D claims for 172 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 126 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen100 claims
- Ibuprofen72 claims
- Diclofenac Sodium67 claims
- Gabapentin56 claims
- Cephalexin27 claims
- Xarelto24 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): 80.8 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).
Stephen Chow among 2,276 orthopaedic surgery physician records in California
Stephen Chow, MD 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1996 · median 2003 among the 1,347 with a school on file
- Record last updated2007 · 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 Apple Valley → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Dilip Kelekar, MDApple Valley, CA 923071700870102
- Tzu-Shang Liu, MD PHDApple Valley, CA 923071922201318
- Tristan Mele, DOApple Valley, CA 923071568800431
- Samuel Rice, MDApple Valley, CA 923071780667899
- Paul Stanton, MDApple Valley, CA 923071902888530
- Sunny Cheung, M.D.Apple Valley, CA 923081932398526
- Talaat Maximous, MDBarstow, CA 923111649274176
- Louis Redix, MDBarstow, CA 923111215967609
Common questions
What is Stephen Chow, MD's NPI number?
Stephen Chow, MD's National Provider Identifier (NPI) is 1447296652, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Chow, MD located?
The NPPES record lists a practice address at 18095 US Highway 18, Apple Valley, CA, 92307. Phone: (760) 242-8238. Providers update this record themselves, so call before visiting.
How can I verify Stephen Chow, MD's license?
NPPES lists California license number A63842, 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 Stephen Chow, MD prescribe under Medicare Part D?
In 2024, Stephen Chow, MD had 433 Medicare Part D claims for 172 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Stephen Chow, MD's MIPS final score?
The 2023 MIPS final score is 80.8 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.