Hesper Pham, O.D.
Optometrist · Mission Viejo, CA
Hesper Pham, O.D. is an optometrist with a practice address in Mission Viejo, California, and NPI 1265728570, issued on Jun 24, 2011. Check the license (California 15212, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hesper Pham
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 15212 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27871 Medical Center RD Ste 120, Mission Viejo, CA 92691
- Phone
- (949) 364-6688
- Enumerated
- Jun 24, 2011
- Record last updated
- Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 368-6689
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 27871 Medical Center RD Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samira Khan, MDOphthalmology Physician1679736672
Verify Hesper Pham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15212Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.0 times the Medicare Part D claims of the average optometrist in 2024
1,673 Medicare Part D claims for 416 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Latanoprost424 claims
- Dorzolamide-Timolol154 claims
- Prednisolone Acetate133 claims
- Ketorolac Tromethamine93 claims
- Brimonidine Tartrate75 claims
- Xiidra74 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $322.04
8 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hesper Pham among 8,308 optometrist records in California
Hesper Pham, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.
- NPI issued2011 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 optometrist records list a practice address in Mission Viejo
They are 58 of the 2,156 NPPES records with a practice address in Mission Viejo, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Mission Viejo → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Leila Ahmadi, O.D.Mission Viejo, CA 926911962595009
- Atousa Attar, O.D.Mission Viejo, CA 926911689619512
- Diana Ciobanu, O.D.Mission Viejo, CA 926911013002179
- James Dugue, O.D.Mission Viejo, CA 926911659306330
- Kathryn Fallon Mijailovic, O.D.Mission Viejo, CA 926911659436426
- Keith Farson, O.D.Mission Viejo, CA 926911366419798
- Jean Feneis, O.D.Mission Viejo, CA 926911538224308
- Linda Hsieh, O.D.Mission Viejo, CA 926911205846961
Common questions
What is Hesper Pham, O.D.'s NPI number?
Hesper Pham, O.D.'s National Provider Identifier (NPI) is 1265728570, issued on Jun 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Hesper Pham, O.D. located?
The NPPES record lists a practice address at 27871 Medical Center RD Ste 120, Mission Viejo, CA, 92691. Phone: (949) 364-6688. Providers update this record themselves, so call before visiting.
How can I verify Hesper Pham, O.D.'s license?
NPPES lists California license number 15212, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Hesper Pham, O.D. prescribe under Medicare Part D?
In 2024, Hesper Pham, O.D. had 1,673 Medicare Part D claims for 416 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.