Dr. Steven Ma, MD
- Hospital affiliations
- 1
- Industry payments
- $320
- Insurance carriers
- 6
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1001 North Tustin Avenue, Santa Ana, CA 92705
- Practice phone
- Call (714) 953-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ma'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. Steven Ma is an orthopedic surgeon in Santa Ana, California
Dr. Ma practices at Orange County Global Medical Center in Santa Ana, California, part of The KPC Group.
Dr. Ma's NPI, 1720140494, was assigned on December 15, 2006. Dr. Ma graduated from Ohio State College of Medicine in 1979. Dr. Ma holds California license G42142.
- NPI
- 1720140494NPI Registry (opens in a new tab)
- NPI enumeration date
- December 15, 2006
- NPI status
- Active
- Practice phone
- (714) 953-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Steven Ma practices at Orange County Global Medical Center in Santa Ana, California
Dr. Ma's primary practice is Orange County Global Medical Center, at 1001 North Tustin Avenue, Santa Ana, CA 92705 in Orange County. The practice phone is (714) 953-3500.
- Orange County Global Medical Center1001 North Tustin Avenue, Santa Ana, CA 92705 · Orange CountyPhone(714) 953-3500
Source: Dmand AI Affiliation Data
Dr. Steven Ma is affiliated with 1 site of care
Dr. Ma's primary practice is Orange County Global Medical Center in Santa Ana, California, part of The KPC Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ma practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orange County Global Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across The KPC Group and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven Ma is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Ma's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Ma is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Orthopedic surgeons near Dr. Ma
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. Steven Ma's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Ma's median patient age at 63, with 62% women.
Dr. Ma'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
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Steven Ma received $320 in industry payments from 2016 to 2025
CMS Open Payments shows 10 general payments to Dr. Ma from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $110.
General payments to Dr. Ma by program year, 2016 to 2025
Companies that paid Dr. Ma 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. Steven Ma graduated from Ohio State College of Medicine
Dr. Ma graduated from Ohio State College of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Steven Ma accepts plans from 6 insurance carriers
Dr. Ma is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Humana. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Ma accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Steven Ma'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Steven Ma
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. Steven Ma's NPI number?
Dr. Steven Ma's NPI number is 1720140494. It was assigned on December 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven Ma?
Dr. Steven Ma is an orthopedic surgeon in Santa Ana, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Steven Ma practice?
Dr. Ma practices at 1001 North Tustin Avenue, Santa Ana, CA 92705. Dr. Ma's primary practice is Orange County Global Medical Center in Santa Ana, California, part of The KPC Group.
What is Dr. Steven Ma's office phone number?
The practice phone on file for Dr. Ma is (714) 953-3500.
What is Dr. Steven Ma's medical license number?
Dr. Ma holds California license G42142.
Which hospitals is Dr. Steven Ma affiliated with?
Dr. Ma practices at Orange County Global Medical Center in Santa Ana, California.
Where did Dr. Steven Ma go to medical school?
Dr. Ma graduated from Ohio State College of Medicine in 1979.
Has Dr. Steven Ma received payments from drug or device companies?
CMS Open Payments shows $320 in general payments to Dr. Ma from 6 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Steven Ma been practicing?
Dr. Ma graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Steven Ma accept?
Dr. Ma is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Humana. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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