Phoebe Chen, OD
NPI 1427639426 · Optometrist · Rancho Cucamonga, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phoebe Chen, OD is a Optometrist provider in Rancho Cucamonga, CA (NPI 1427639426).
Provider details
- NPI number
- 1427639426
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 0618003107 (VA)
Specialties & taxonomies
Eye and Vision Services Providers
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
5 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 95 | 66 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 28 | 19 |
| Brimonidine Tartrate | 25 | 18 |
| Timolol Maleate | 21 | 18 |
| Erythromycin Basebrand: Erythromycin | 20 | 20 |
| Ketorolac Tromethamine | 18 | 14 |
| Prednisolone Acetate | 17 | 15 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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.
$187 across 6 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
- 2021-04-20
- Last updated
- 2024-07-01
- Certified
- 2024-07-01
Frequently asked questions
- What is Phoebe Chen's NPI number?
- Phoebe Chen's National Provider Identifier (NPI) is 1427639426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phoebe Chen's specialty?
- Phoebe Chen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Phoebe Chen located?
- Phoebe Chen's practice location on file with NPPES is 9170 Haven Ave Ste 102, Rancho Cucamonga, CA 91730-5416.
- What is Phoebe Chen's phone number?
- The practice phone number listed in the NPPES registry for Phoebe Chen is (909) 440-1014.
- Does Phoebe Chen accept Medicare?
- Phoebe Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phoebe Chen's NPI active?
- Yes — Phoebe Chen's NPI (1427639426) is active in the NPPES registry as of the last update on 2024-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.