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Dr. Stephen T. Gardner, MD
NPI1871753392PAC ID1052578325
- Medicare services, 2024
- 9,402
- Medicare patients, 2024
- 673
- Part D claims, 2024
- 295
- Publications
- 1
- MIPS score, 2024
- 75
- Practice address
- 26401 Crown Valley Pkwy, Mission Viejo, CA 92691
- Practice phone
- Call (949) 348-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Orthopedic Medical Group
Mission Viejo, California
Find Dr. Gardner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stephen T. Gardner is an orthopedic surgeon in Mission Viejo, California
Dr. Gardner practices at Community Orthopedic Medical Group in Mission Viejo, California.
Dr. Gardner's NPI, 1871753392, was assigned on June 10, 2008. Dr. Gardner graduated from David Geffen School of Medicine at UCLA in 2008. Dr. Gardner holds California license A124837.
NPI and contact details
- NPI
- 1871753392NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052578325
- NPI enumeration date
- June 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 348-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen T. Gardner practices at Community Orthopedic Medical Group in Mission Viejo, California
Dr. Gardner's primary practice is Community Orthopedic Medical Group, at 26401 Crown Valley Pkwy, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 348-4000.
- Community Orthopedic Medical Group26401 Crown Valley Pkwy, Mission Viejo, CA 92691 · Orange CountyPhone(949) 348-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen T. Gardner is affiliated with 7 sites of care and 1 medical group
Dr. Gardner's primary practice is Community Orthopedic Medical Group in Mission Viejo, California. Dr. Gardner is also affiliated with Providence Mission Hospital. The medical group on file is Community Orthopedic Medical Group. Dmand AI also links Dr. Gardner to 4 more home health agencies and 1 group practice or clinic, each named with a free account.
Community Orthopedic Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen T. Gardner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gardner practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Orthopedic Medical Group | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen T. Gardner is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Gardner's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Gardner is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Gardner's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Massachusetts license
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, carpal tunnel syndrome, joint pain and leg, ankle or foot fracture among the conditions Dr. Gardner treats.
Orthopedic surgeons near Dr. Gardner
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen T. Gardner billed Medicare for 9,402 services in 2024
CMS data shows 9,402 Medicare services from Dr. Gardner across 27 procedure codes in 2024, for 673 Medicare patients. Medicare paid $269,278 for them.
Medicare services, 20249,402
Medicare patients673
Paid by Medicare$269,278
Procedure codes27
Dr. Gardner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 5,2302024: 6,57126%
- Office and hospital visits
- 2023: 1,2562024: 1,1786%
- Imaging
- 2023: 1,1682024: 1,1283%
- Surgery
- 2023: 4902024: 4773%
- Other services
- 2023: 372024: 4830%
Where Dr. Gardner's Medicare services took place, 2024
- In an office9,30599%
- In a facility971%
Dr. Gardner compared with the California median for orthopedic surgeons, 2024
- Dr. Gardner
- California median
- Medicare services
- 9,402vs 68313.8 times
- Medicare patients
- 673vs 2153.1 times
- Part D claims
- 241vs 703.4 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Gardner'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gardner and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen T. Gardner treated 673 Medicare patients in 2024, average age 76
CMS counts 673 Medicare patients who saw Dr. Gardner in 2024. The largest group is 75 to 84, with 290 patients. 75% of them have arthritis, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gardner's median patient age at 66, with 54% women.
Medicare patients, 2024673
Average age76
Average risk score1.13
Also on Medicaid7%
Dr. Gardner's Medicare patients by age, 2024
Dr. Gardner's Medicare patients by sex, 2024
- Women40460%
- Men26940%
Chronic conditions among Dr. Gardner's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure71%
- Ischemic heart disease26%
- Anxiety23%
- Diabetes21%
- Mood disorders21%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gardner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen T. Gardner wrote 295 Medicare Part D claims in 2024
In 2024, Dr. Gardner wrote 295 Medicare Part D claims for 145 patients. 100% of them were for generic drugs. CMS names the drug for 241 of them, across 7 drugs with 11 or more claims each, at $3,010 in total drug cost. In 2023, CMS named 241 claims across 6 drugs.
Part D claims, 2024295
Drugs named by CMS7
Total drug cost$3,010
Part D patients145
Dr. Gardner'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. Gardner's Part D claims, 2024
- Opioids15%44 of 295 claims
- Antibiotics23%67 of 295 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: 2412024: 241No change
Drugs named by CMS: 7 in 2024, 6 in 2023.
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 T. Gardner scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Gardner for performance year 2024, reported as part of a group. Dr. Gardner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 35 procedures of knee replacement by Dr. Gardner, more than 69% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Gardner ranks in Medicare procedure volume
- Knee replacement
- 69th percentile35 procedures
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 66th percentile22 procedures
- Hip replacement
- 62nd percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 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 T. Gardner has 1 publication on record
Dmand AI links 1 paper to Dr. Gardner in 2016.
Papers1
Recent publications by Dr. Gardner
See who Dr. Gardner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gardner works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen T. Gardner received $14,902 in industry payments from 2016 to 2025
CMS Open Payments shows 137 general payments to Dr. Gardner from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 55% of the total. Arthrex, Inc. paid the most, $6,305.
General payments to Dr. Gardner by program year, 2016 to 2025
General payments to Dr. Gardner by kind, 2016 to 2025
$14.9Kin total
- Food and beverage$8,17855%
- Education$5,27435%
- Travel and lodging$1,45010%
Companies that paid Dr. Gardner the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen T. Gardner graduated from David Geffen School of Medicine at UCLA
Dr. Gardner graduated from David Geffen School of Medicine at UCLA in 2008.
- Medical school
- Board certified in orthopaedic sports medicine
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Stephen T. Gardner accepts plans from 13 insurance carriers
Dr. Gardner is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Gardner accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Stephen T. Gardner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen T. Gardner
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 T. Gardner's NPI number?
Dr. Stephen T. Gardner's NPI number is 1871753392. It was assigned on June 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen T. Gardner?
Dr. Stephen T. Gardner is an orthopedic surgeon in Mission Viejo, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Stephen T. Gardner practice?
Dr. Gardner practices at 26401 Crown Valley Pkwy, Mission Viejo, CA 92691. Dr. Gardner's primary practice is Community Orthopedic Medical Group in Mission Viejo, California. Dmand AI also links Dr. Gardner to 4 home health agencies and 1 group practice or clinic.
What is Dr. Stephen T. Gardner's office phone number?
The practice phone on file for Dr. Gardner is (949) 348-4000.
What is Dr. Stephen T. Gardner's medical license number?
Dr. Gardner holds California license A124837, one of the licenses on file in 2 states.
Which states has Dr. Stephen T. Gardner been licensed in?
Dmand AI has state licenses on file for Dr. Gardner in California (2013 to 2026) and Massachusetts (2011 to 2013).
Which hospitals is Dr. Stephen T. Gardner affiliated with?
Dr. Gardner is affiliated with Providence Mission Hospital.
What medical group is Dr. Stephen T. Gardner part of?
Dr. Gardner is linked to Community Orthopedic Medical Group.
Does Dr. Stephen T. Gardner accept Medicare?
Yes. CMS data shows Dr. Gardner billed Medicare for 9,402 services in 2024, and Dr. Gardner accepts Medicare assignment.
What is Dr. Stephen T. Gardner's MIPS score?
Dr. Gardner's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Stephen T. Gardner see?
CMS counts 673 Medicare patients who saw Dr. Gardner in 2024, with an average age of 76.
Is Dr. Stephen T. Gardner board certified?
Yes. Dr. Gardner is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery.
What services does Dr. Stephen T. Gardner bill to Medicare?
In 2024, Dr. Gardner's most billed Medicare services were injected or infused drug (J7329), injected or infused drug (J3301) and office visit, established patient (99213).
Where did Dr. Stephen T. Gardner go to medical school?
Dr. Gardner graduated from David Geffen School of Medicine at UCLA in 2008.
What drugs does Dr. Stephen T. Gardner prescribe most?
In 2024 Medicare Part D data, Dr. Gardner's most prescribed drugs by claims were Celecoxib, Cephalexin and Diclofenac Sodium.
Has Dr. Stephen T. Gardner received payments from drug or device companies?
CMS Open Payments shows $14,902 in general payments to Dr. Gardner from 16 companies from 2016 to 2025. The largest total came from Arthrex, Inc.
How long has Dr. Stephen T. Gardner been practicing?
Dr. Gardner graduated from medical school in 2008, 18 years ago.
Does Dr. Stephen T. Gardner do research?
Dmand AI links 1 publication to Dr. Gardner.
What insurance does Dr. Stephen T. Gardner accept?
Dr. Gardner is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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