John Marshburn, M.D.
NPI 1245246164 · Ophthalmology Physician · Placentia, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Marshburn, M.D. is a Ophthalmology Physician provider in Placentia, CA (NPI 1245246164).
Provider details
- NPI number
- 1245246164
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A60789 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,474 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Complete Exam of Visual System92014 | 1,301 | $140 |
| Photography of the Retina92250 | 1,241 | $21 |
| Imaging of Optic Nerve92133 | 1,137 | $20 |
| Exam of Visual Field With Extended Testing92083 | 823 | $36 |
| Established Patient Problem Focused Exam of Visual System92012 | 764 | $99 |
| Imaging of Retina92134 | 616 | $22 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 951 | 264 |
| Bimatoprostbrand: Lumigan | 261 | 73 |
| Timolol Maleate | 194 | 73 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 186 | 56 |
| Dorzolamide Hcl | 140 | 47 |
| Brimonidine Tartratebrand: Alphagan P | 89 | 21 |
| Erythromycin Basebrand: Erythromycin | 83 | 66 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2007-11-28
Frequently asked questions
- What is John Marshburn's NPI number?
- John Marshburn's National Provider Identifier (NPI) is 1245246164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marshburn's specialty?
- John Marshburn is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Marshburn located?
- John Marshburn's practice location on file with NPPES is 1275 N Rose Dr, Placentia, CA 92870-3941.
- What is John Marshburn's phone number?
- The practice phone number listed in the NPPES registry for John Marshburn is (714) 792-1199.
- Does John Marshburn accept Medicare?
- John Marshburn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Marshburn's NPI active?
- Yes — John Marshburn's NPI (1245246164) is active in the NPPES registry as of the last update on 2007-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.