2026 NPPES data Optometrist NPI 1396995239 OD
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ISAAC BELL, OD

Optometrist in LEWISTON, Idaho. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
469
Medicare Part D claims · 86 beneficiaries · Optometrist avg: 257
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ISAAC BELL, OD is a Optometrist ([object Object]) practicing in LEWISTON, Idaho with a Medicare Part D prescribing footprint of 469 claims across 86 beneficiaries — 27% brand-name prescribing .

What stands out: ISAAC BELL, OD filed 469 Medicare Part D claims in 2023 across LEWISTON, Idaho. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ISAAC BELL, OD at a glance

Quality data not reported

NPI registry status

Active

Issued 09/29/2008

NPI 1396995239

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

469 82% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Idaho

How Optometrist compares to other specialties among Idaho providers

Idaho providers

Optometrist share within Idaho

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Idaho

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — ABMS / AOA estimate

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).

ISAAC BELL, OD is a Optometrist provider practicing in LEWISTON, Idaho, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OD. NPI: 1396995239. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ISAAC BELL, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 210 THAIN RD, LEWISTON, ID, 83501, with a listed phone of (208) 746-2644. NPI 1396995239 was issued on 09/29/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BELL 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 469 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $17K in drug spend, split 27% brand-name and 73% 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

210 THAIN RD
LEWISTON, ID 83501

Provider Details

NPI 1396995239
Specialty Optometrist
Credentials OD
Gender Male
NPI Issued 09/29/2008

Brand vs generic prescribing mix · Above average

ISAAC BELL, OD — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 469 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.

469
Total Claims
$17K
Total Drug Cost
86
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
631
Total Day Supply
17,144
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$10K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.42
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
282
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
58
Timolol Maleate
35
Brimonidine Tartrate
26
Prednisolone Acetate
21

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Optometrist Overview

How ISAAC BELL, OD fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

ISAAC BELL, OD's 469 claims are above the specialty average of 257.

Nearby Optometrist Providers in Idaho

Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as BELL.

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ISAAC BELL, OD's specialty?
ISAAC BELL, OD specializes in Optometrist and practices in LEWISTON, Idaho. Credentials: OD.
How much does ISAAC BELL, OD prescribe under Medicare Part D?
In 2023, ISAAC BELL, OD wrote 469 Medicare Part D claims totaling $17K in drug costs for 86 beneficiaries.
Where is ISAAC BELL, OD located?
ISAAC BELL, OD is located at 210 THAIN RD, LEWISTON, ID, 83501. Phone: (208) 746-2644.
What is ISAAC BELL, OD's NPI number?
ISAAC BELL, OD's National Provider Identifier (NPI) is 1396995239, issued on 09/29/2008.
Does ISAAC BELL, OD prescribe more brand-name or generic drugs?
ISAAC BELL, OD's prescribing is 27% brand-name and 73% generic drugs by claim count, with $10K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does ISAAC BELL, OD prescribe most often?
Based on 2023 Medicare Part D data, ISAAC BELL, OD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ISAAC BELL, OD accept Medicare?
ISAAC BELL, OD appears in CMS Medicare data with 469 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ISAAC BELL, OD's credentials?
ISAAC BELL, OD's NPI is 1396995239 with credentials OD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

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