Anthony Mai, MD
NPI 1699394874 · Ophthalmology Physician · Westlake Village, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anthony Mai, MD is a Ophthalmology Physician provider in Westlake Village, CA (NPI 1699394874).
Provider details
- NPI number
- 1699394874
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A206386 (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
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
94 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 | 37 | $87 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 19 | $54 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $160 |
| Removal of Recurring Cataract in Lens Capsule Using a Laser66821 | 11 | $398 |
Typical Medicare-allowed amounts for these services range $54–$398 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 60 | 59 |
| Moxifloxacin Hclbrand: Moxifloxacin | 57 | 46 |
| Latanoprost | 36 | 15 |
| Ketorolac Tromethamine | 35 | 34 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 15 | — |
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,202 across 33 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 (2)
- 1821 E Daily DrCamarillo, CA 93010-6201Phone: (805) 987-5300
- 3101 W 57th StSioux Falls, SD 57108-3162Phone: (605) 361-3937Fax: (605) 371-7199
Registry dates
- Enumerated
- 2020-04-08
- Last updated
- 2025-12-27
- Certified
- 2025-12-27
Frequently asked questions
- What is Anthony Mai's NPI number?
- Anthony Mai's National Provider Identifier (NPI) is 1699394874, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anthony Mai's specialty?
- Anthony Mai is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Anthony Mai located?
- Anthony Mai's practice location on file with NPPES is 4353 Park Terrace Dr Ste 150, Westlake Village, CA 91361-4639.
- What is Anthony Mai's phone number?
- The practice phone number listed in the NPPES registry for Anthony Mai is (805) 987-5300.
- Does Anthony Mai accept Medicare?
- Anthony Mai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anthony Mai's NPI active?
- Yes — Anthony Mai's NPI (1699394874) is active in the NPPES registry as of the last update on 2025-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.