Robert Martin, M.D.
NPI 1356318794 · Orthopaedic Surgery Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Martin, M.D. is a Orthopaedic Surgery Physician provider in Castro Valley, CA (NPI 1356318794).
Provider details
- NPI number
- 1356318794
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G671850 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
647 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 166 | $79 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 164 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 155 | $153 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 76 | $197 |
| X-Ray of Knee, 1-2 Views73560 | 26 | $45 |
| Aspiration And/Or Injection of Fluid From Large Joint |
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 |
|---|---|---|
| Gabapentin | 39 | 19 |
| Celecoxib | 37 | 17 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | 17 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 20 | 15 |
| Mupirocin | 18 | 18 |
| Amoxicillin | 14 | 14 |
| Ibuprofen | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100 across 1 record (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
Registry dates
- Enumerated
- 2006-03-03
- Last updated
- 2021-02-17
- Certified
- 2021-02-17
Frequently asked questions
- What is Robert Martin's NPI number?
- Robert Martin's National Provider Identifier (NPI) is 1356318794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Martin's specialty?
- Robert Martin is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Martin located?
- Robert Martin's practice location on file with NPPES is 21030 Redwood Rd, Castro Valley, CA 94546-5920.
- What is Robert Martin's phone number?
- The practice phone number listed in the NPPES registry for Robert Martin is (510) 247-8281.
- Does Robert Martin accept Medicare?
- Robert Martin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Martin's NPI active?
- Yes — Robert Martin's NPI (1356318794) is active in the NPPES registry as of the last update on 2021-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.