Christos Theophanous, M.D.
NPI 1134582356 · Ophthalmology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christos Theophanous, M.D. is a Ophthalmology Physician provider in Palo Alto, CA (NPI 1134582356).
Provider details
- NPI number
- 1134582356
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A174037 (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
10 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
2,674 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 684 | $153 |
| Imaging of Optic Nerve92133 | 299 | $44 |
| Exam of Visual Field With Extended Testing92083 | 259 | $82 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 243 | $634 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 226 | $29 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 508 | 134 |
| Prednisolone Acetate | 333 | 231 |
| Polymyxin B Sulf/Trimethoprimbrand: Polymyxin B Sul-Trimethoprim | 243 | 211 |
| Diclofenac Sodium | 123 | 98 |
| Timolol Maleate | 96 | 38 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 88 | 30 |
| Brimonidine Tartrate | 64 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$75 across 3 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
Registry dates
- Enumerated
- 2016-04-04
- Last updated
- 2021-09-29
- Certified
- 2021-09-29
Frequently asked questions
- What is Christos Theophanous's NPI number?
- Christos Theophanous's National Provider Identifier (NPI) is 1134582356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christos Theophanous's specialty?
- Christos Theophanous is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Christos Theophanous located?
- Christos Theophanous's practice location on file with NPPES is 795 El Camino Real, Palo Alto, CA 94301-2302.
- What is Christos Theophanous's phone number?
- The practice phone number listed in the NPPES registry for Christos Theophanous is (650) 853-2974.
- Does Christos Theophanous accept Medicare?
- Christos Theophanous is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christos Theophanous's NPI active?
- Yes — Christos Theophanous's NPI (1134582356) is active in the NPPES registry as of the last update on 2021-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.