Hesper Pham, O.D.
NPI 1265728570 · Optometrist · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hesper Pham, O.D. is a Optometrist provider in Mission Viejo, CA (NPI 1265728570).
Provider details
- NPI number
- 1265728570
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 15212 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 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 | 424 | 119 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 154 | 57 |
| Prednisolone Acetate | 133 | 73 |
| Ketorolac Tromethamine | 93 | 58 |
| Brimonidine Tartrate | 75 | 26 |
| Lifitegrastbrand: Xiidra | 74 | 29 |
| Moxifloxacin Hclbrand: Moxifloxacin | 65 | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$322 across 8 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
- 2011-06-24
- Last updated
- 2021-12-30
- Certified
- 2021-12-30
Frequently asked questions
- What is Hesper Pham's NPI number?
- Hesper Pham's National Provider Identifier (NPI) is 1265728570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hesper Pham's specialty?
- Hesper Pham is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Hesper Pham located?
- Hesper Pham's practice location on file with NPPES is 27871 Medical Center Rd Ste 120, Mission Viejo, CA 92691-6405.
- What is Hesper Pham's phone number?
- The practice phone number listed in the NPPES registry for Hesper Pham is (949) 364-6688.
- Does Hesper Pham accept Medicare?
- Hesper Pham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hesper Pham's NPI active?
- Yes — Hesper Pham's NPI (1265728570) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.