Diana Bandak, OD
NPI 1235805318 · Optometrist · Bakersfield, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Bandak, OD is a Optometrist provider in Bakersfield, CA (NPI 1235805318).
Provider details
- NPI number
- 1235805318
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- OPT34850-TLG (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 tenure25% of score
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
56 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) |
|---|---|---|
| Imaging of Retina92134 | 26 | $43 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $99 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 13 | $62 |
Typical Medicare-allowed amounts for these services range $43–$99 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 88 | 46 |
| Erythromycin Basebrand: Erythromycin | 73 | 54 |
| Doxycycline Monohydrate | 51 | 33 |
| Brimonidine Tartrate | 42 | 25 |
| Azelastine Hcl | 33 | 20 |
| Prednisolone Acetate | 31 | 23 |
| Cyclosporine | 23 | 14 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$61 across 2 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 (1)
- 3816 Woodruff Ave Ste 100Long Beach, CA 90808-2145Phone: (800) 898-2020
Registry dates
- Enumerated
- 2021-08-19
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Diana Bandak's NPI number?
- Diana Bandak's National Provider Identifier (NPI) is 1235805318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Bandak's specialty?
- Diana Bandak is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Diana Bandak located?
- Diana Bandak's practice location on file with NPPES is 2323 16th St Ste 400, Bakersfield, CA 93301-3454.
- What is Diana Bandak's phone number?
- The practice phone number listed in the NPPES registry for Diana Bandak is (800) 898-2020.
- Does Diana Bandak accept Medicare?
- Diana Bandak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Bandak's NPI active?
- Yes — Diana Bandak's NPI (1235805318) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.