Joseph Demer, MD
NPI 1710900535 · Ophthalmology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Demer, MD is a Ophthalmology Physician provider in Los Angeles, CA (NPI 1710900535).
Provider details
- NPI number
- 1710900535
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A43662 (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
494 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) |
|---|---|---|
| Exam to Measure Eye Deviation and Range of Motion92060 | 189 | $71 |
| Established Patient Problem Focused Exam of Visual System92012 | 131 | $98 |
| Established Patient Complete Exam of Visual System92014 | 33 | $140 |
| Placement of Adjustable Sutures During Eye Muscle Surgery67335 | 32 | $192 |
| New Patient Complete Exam of Visual System92004 | 31 | $165 |
| Realignment of Vertical Eye Muscle67314 | 26 | $457 |
| Realignment of Horizontal Eye Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Neomycin/Bacit/P-Myx/Hydrocortbrand: Neomycin-Bacitracin-Poly-Hc | 45 | 44 |
| Prednisolone Acetate | 16 | 13 |
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 no Part D record, 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2020-01-23
- Certified
- 2020-01-23
Frequently asked questions
- What is Joseph Demer's NPI number?
- Joseph Demer's National Provider Identifier (NPI) is 1710900535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Demer's specialty?
- Joseph Demer is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Demer located?
- Joseph Demer's practice location on file with NPPES is 200 Stein Plaza Suite 3-310, Los Angeles, CA 90095-0001.
- What is Joseph Demer's phone number?
- The practice phone number listed in the NPPES registry for Joseph Demer is (310) 825-5931.
- Does Joseph Demer accept Medicare?
- Joseph Demer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Demer's NPI active?
- Yes — Joseph Demer's NPI (1710900535) is active in the NPPES registry as of the last update on 2020-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.