Dr. Stephen Chow, MD

  • Apple Valley, CA
  • Orthopedic surgeon
NPI1447296652PAC ID8527017136
Medicare services, 2024
2,406
Medicare patients, 2024
335
Part D claims, 2024
433
Publications
5
MIPS score, 2024
64
Practice address
15990 Tuscola Rd, Apple Valley, CA 92307
Practice phone
Call (760) 242-4808
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Ultimate Sports & Orthopaedics

Apple Valley, California

See all 8 affiliations

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Dr. Stephen Chow is an orthopedic surgeon in Apple Valley, California

Dr. Chow practices at Ultimate Sports & Orthopaedics in Apple Valley, California.

Dr. Chow's NPI, 1447296652, was assigned on June 22, 2006. Dr. Chow graduated from New York Medical College in 1996. Dr. Chow holds California license A63842.

NPI and contact details
Medicare PAC ID
8527017136
NPI enumeration date
June 22, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(760) 242-4808
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen Chow practices at Ultimate Sports & Orthopaedics in Apple Valley, California

Dr. Chow's primary practice is Ultimate Sports & Orthopaedics, at 15990 Tuscola Rd, Apple Valley, CA 92307 in San Bernardino County. The practice phone is (760) 242-4808.

  • Ultimate Sports & Orthopaedics
    15990 Tuscola Rd, Apple Valley, CA 92307 · San Bernardino CountyPhone(760) 242-4808

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Stephen Chow is affiliated with 7 sites of care and 1 medical group

Dr. Chow's primary practice is Ultimate Sports & Orthopaedics in Apple Valley, California. Dr. Chow is also affiliated with Victor Valley Global Medical Center. The medical group on file is Ultimate Sports and Orthopaedics. Dmand AI also links Dr. Chow to 1 more hospital, 2 home health agencies, 1 physician office and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Dr. Chow

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Stephen Chow's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chow practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ultimate Sports & OrthopaedicsAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen Chow is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Chow's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chow is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Chow is licensed in California.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense A63842 · 1997 to 2027 · taxonomy 207X00000X

Clinical focus

Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, enthesopathy in arms, fluid in a joint and hand joint or tendon inflammation among the conditions Dr. Chow treats.

Orthopedic surgeons near Dr. Chow

Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.

2,056orthopedic surgeons in California
6orthopedic surgeons in Apple Valley

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen Chow billed Medicare for 2,406 services in 2024

CMS data shows 2,406 Medicare services from Dr. Chow across 13 procedure codes in 2024, for 335 Medicare patients. Medicare paid $117,709 for them.

Medicare services, 20242,406
Medicare patients335
Paid by Medicare$117,709
Procedure codes13

Dr. Chow's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 4382024: 1,308199%
Office and hospital visits
2023: 1,0352024: 83220%
Surgery
2023: 2882024: 2668%
Imaging
2023: 182024: 0100%

Where Dr. Chow's Medicare services took place, 2024

  • In an office2,35798%
  • In a facility492%

Dr. Chow compared with the California median for orthopedic surgeons, 2024

  • Dr. Chow
  • California median
Medicare services
2,406vs 6833.5 times
Medicare patients
335vs 21556% above
Part D claims
398vs 705.7 times

Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.

Dr. Chow's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Chow

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Stephen Chow treated 335 Medicare patients in 2024, average age 74

CMS counts 335 Medicare patients who saw Dr. Chow in 2024. The largest group is 65 to 74, with 151 patients. 75% of them have arthritis, and 75% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chow's median patient age at 63, with 55% women.

Medicare patients, 2024335
Average age74
Average risk score1.27
Also on Medicaid19%

Dr. Chow's Medicare patients by age, 2024

Dr. Chow's Medicare patients by sex, 2024

  • Women21364%
  • Men12236%

Chronic conditions among Dr. Chow's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes47%
  5. Chronic kidney disease33%
  6. Ischemic heart disease33%
  7. Heart failure26%
  8. COPD23%

Share of Medicare patients with each condition. A patient can have several.

Dr. Chow's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women55%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen Chow wrote 433 Medicare Part D claims in 2024

In 2024, Dr. Chow wrote 433 Medicare Part D claims for 172 patients. 94% of them were for generic drugs. CMS names the drug for 398 of them, across 9 drugs with 11 or more claims each, at $19,952 in total drug cost. In 2023, CMS named 375 claims across 8 drugs.

Part D claims, 2024433
Drugs named by CMS9
Total drug cost$19,952
Part D patients172

Dr. Chow's Part D claims by kind of drug, 2024

  • Generic407 claims94%
  • Brand-name26 claims6%

Dr. Chow's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Chow's Part D claims, 2024

  • Opioids29%126 of 433 claims
  • Antibiotics11%47 of 433 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3752024: 3986%

Drugs named by CMS: 9 in 2024, 8 in 2023.

See all prescribing by Dr. Chow

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Stephen Chow scored 64 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 64 out of 100 for Dr. Chow for performance year 2024, reported individually. Dr. Chow accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 25 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Chow, more than 95% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Chow's MIPS scores, performance year 2024

  • 64of 100Final score
  • 87of 100Quality
  • 0of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Chow ranks in Medicare procedure volume

Upper limb (arm) arthroscopy (minimally invasive joint repair)
83rd percentile44 procedures
Lower limb (leg) arthroscopy (minimally invasive joint repair)
95th percentile25 procedures
Knee replacement
45th percentile15 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Stephen Chow has 5 publications on record

Dmand AI links 5 papers to Dr. Chow, published from 2020 to 2021. 2021 was the busiest year, with 2. The most frequent topics are Chromosome Mapping. Dr. Chow's most frequent co-authors are Pui-Yan Kwok, MD, PhD, Renata C. Gallagher, MD and Ophir David Klein, MD, PhD.

Papers5
Years published2020 to 2021

Topics Dr. Chow writes about most

  • Chromosome Mapping

Dr. Chow's most frequent co-authors

Recent publications by Dr. Chow

See all 5 publications and co-authors

See who Dr. Chow researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chow works with, so you can find a warm path to the right orthopedic surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephen Chow received $1,790 in industry payments from 2016 to 2023

CMS Open Payments shows 12 general payments to Dr. Chow from 5 drug and device companies from 2016 to 2023. Education make up the largest share, 67% of the total. Empire Medical, Inc paid the most, $1,200.

General payments to Dr. Chow by program year, 2016 to 2023

General payments to Dr. Chow by kind, 2016 to 2023

$1.8Kin total
  • Education$1,20067%
  • Food and beverage$59033%

Companies that paid Dr. Chow the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Chow

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Stephen Chow has 1 award and honors on record

Dmand AI lists 1 award for Dr. Chow, most recently Chief of Staff in 2020.

Awards and honors for Dr. Chow

  1. 2020
    • Chief of Staff

Source: Dmand AI Professional Profile Data

Dr. Stephen Chow graduated from New York Medical College

Dr. Chow graduated from New York Medical College in 1996. Dr. Chow is a member of AOA and AAOS.

  1. Medical schoolNew York Medical College
  2. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. Stephen Chow accepts plans from 16 insurance carriers

Dr. Chow is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Molina
  • Regence Health Plans
  • +8 more carriersWith a free account

Plan types Dr. Chow accepts, by number of carriers

  1. PPO9
  2. HMO8
  3. Medicare8
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen Chow's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephen Chow

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Stephen Chow's NPI number?

Dr. Stephen Chow's NPI number is 1447296652. It was assigned on June 22, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen Chow?

Dr. Stephen Chow is an orthopedic surgeon in Apple Valley, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Stephen Chow practice?

Dr. Chow practices at 15990 Tuscola Rd, Apple Valley, CA 92307. Dr. Chow's primary practice is Ultimate Sports & Orthopaedics in Apple Valley, California. Dmand AI also links Dr. Chow to 1 hospital, 2 home health agencies, 1 physician office and 1 group practice or clinic.

What is Dr. Stephen Chow's office phone number?

The practice phone on file for Dr. Chow is (760) 242-4808.

What is Dr. Stephen Chow's medical license number?

Dr. Chow holds California license A63842.

Which hospitals is Dr. Stephen Chow affiliated with?

Dr. Chow is affiliated with Victor Valley Global Medical Center. Dmand AI links Dr. Chow to 1 more hospital.

What medical group is Dr. Stephen Chow part of?

Dr. Chow is linked to Ultimate Sports and Orthopaedics.

Does Dr. Stephen Chow accept Medicare?

Yes. CMS data shows Dr. Chow billed Medicare for 2,406 services in 2024, and Dr. Chow accepts Medicare assignment.

What is Dr. Stephen Chow's MIPS score?

Dr. Chow's MIPS final score for performance year 2024 is 64 out of 100, reported individually.

How many Medicare patients does Dr. Stephen Chow see?

CMS counts 335 Medicare patients who saw Dr. Chow in 2024, with an average age of 74.

Show 9 more questionsShow fewer questions

Is Dr. Stephen Chow board certified?

Yes. Dr. Chow is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.

What services does Dr. Stephen Chow bill to Medicare?

In 2024, Dr. Chow's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99214) and surgery: bones and joints (20610).

Where did Dr. Stephen Chow go to medical school?

Dr. Chow graduated from New York Medical College in 1996.

What drugs does Dr. Stephen Chow prescribe most?

In 2024 Medicare Part D data, Dr. Chow's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ibuprofen and Diclofenac Sodium.

Has Dr. Stephen Chow received payments from drug or device companies?

CMS Open Payments shows $1,790 in general payments to Dr. Chow from 5 companies from 2016 to 2023. The largest total came from Empire Medical, Inc.

How long has Dr. Stephen Chow been practicing?

Dr. Chow graduated from medical school in 1996, 30 years ago.

Does Dr. Stephen Chow do research?

Dmand AI links 5 publications to Dr. Chow, published from 2020 to 2021.

Who does Dr. Stephen Chow publish with?

Dr. Chow's most frequent co-authors are Pui-Yan Kwok, MD, PhD (5 shared papers), Renata C. Gallagher, MD (2 shared papers) and Ophir David Klein, MD, PhD (2 shared papers).

What insurance does Dr. Stephen Chow accept?

Dr. Chow is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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