Stephen Gardner, M.D.
NPI 1871753392 · Orthopaedic Surgery Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Sports Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Gardner, M.D. is a Orthopaedic Surgery Physician provider in Mission Viejo, CA (NPI 1871753392).
Provider details
- NPI number
- 1871753392
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A124837 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,831 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 656 | $92 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 348 | $111 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 318 | $129 |
| X-Ray of Knee, 4 Or More Views73564 | 241 | $50 |
| X-Ray of Shoulder Blade73010 | 219 | $25 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 219 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Celecoxib | 90 | 46 |
| Cephalexin | 62 | 38 |
| Diclofenac Sodium | 31 | 12 |
| Methylprednisolone | 22 | 22 |
| Meloxicam | 13 | — |
| Tramadol Hcl | 12 | — |
| Oxycodone Hcl | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,009 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 26401 Crown Valley Pkwy Ste 101Mission Viejo, CA 92691-6302Phone: (949) 348-4000
Registry dates
- Enumerated
- 2008-06-10
- Last updated
- 2024-12-04
- Certified
- 2024-12-04
Frequently asked questions
- What is Stephen Gardner's NPI number?
- Stephen Gardner's National Provider Identifier (NPI) is 1871753392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Gardner's specialty?
- Stephen Gardner is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Gardner located?
- Stephen Gardner's practice location on file with NPPES is 26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 92691-6302.
- What is Stephen Gardner's phone number?
- The practice phone number listed in the NPPES registry for Stephen Gardner is (949) 348-4000.
- Does Stephen Gardner accept Medicare?
- Stephen Gardner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Gardner's NPI active?
- Yes — Stephen Gardner's NPI (1871753392) is active in the NPPES registry as of the last update on 2024-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.