JOANNA TANAKA
Optometrist in SANTA FE, New Mexico. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
JOANNA TANAKA filed 253 Medicare Part D claims in 2023 as a Optometrist in SANTA FE, New Mexico, prescribing 72% generic.
- 253
- Part D claims, 2023
- 72%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
JOANNA TANAKA's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
253 49th percentile higher than 49% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about JOANNA TANAKA?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in New Mexico
How Optometrist compares to other specialties among New Mexico providers
Optometrist share within New Mexico
Optometrist is one of the more visible NUCC categories in New Mexico
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Optometrist ABMS/AOA estimate
Est. board-certified rate (Optometrist) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Optometrist US NPIs
Specialty board-certified rate — Optometrist estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
JOANNA TANAKA appears in the CMS NPPES registry as a Optometrist provider at 1700 CERRILLOS RD, SANTA FE, NM, 87505, with a listed phone of (505) 946-9282. NPI 1073009007 was issued on 07/02/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TANAKA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 253 prescription claims written by this provider, covering 52 Medicare beneficiaries and totaling roughly $23K in drug spend, split 28% brand-name and 72% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1073009007 |
|---|---|
| Specialty | Optometrist |
| Gender | Female |
| NPI Issued | 07/02/2018 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm JOANNA TANAKA's current license status, disciplinary history, and board certifications with the New Mexico Medical Board in New Mexico before relying on this page for a clinical or care decision.
How we sourced this profile
Brand vs generic prescribing mix · Above average
28% brand-name claims vs 72% generic, on 253 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 282
- Total Day Supply
- 7,629
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $18K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What JOANNA TANAKA prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
129 claims
- Dorzolamide-Timolol 42
Dorzolamide-Timolol
42 claims
- Dorzolamide Hcl 15
Dorzolamide Hcl
15 claims
- Alphagan P 12
Alphagan P
12 claims
| Drug | Claims |
|---|---|
| Latanoprost | 129 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 42 |
| Dorzolamide Hcl | 15 |
| Alphagan P Brimonidine Tartrate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How JOANNA TANAKA fits within the Optometrist landscape nationally.
JOANNA TANAKA's 253 claims are below the specialty average of 257.
Nearby Optometrist Providers in New Mexico
Other clinicians with the same primary specialty enrolled in New Mexico, drawn from the same CMS NPPES roster as TANAKA.
Compare Optometrist nationally: see state-by-state distribution →
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Frequently Asked Questions
What is JOANNA TANAKA's specialty? ▼
How much does JOANNA TANAKA prescribe under Medicare Part D? ▼
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What is JOANNA TANAKA's NPI number? ▼
Does JOANNA TANAKA prescribe more brand-name or generic drugs? ▼
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology