2026 NPPES data Optometrist NPI 1255493599 O.D.
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JOSEPH PARKS, O.D.

Optometrist in BELGRADE, Montana. 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
28
Medicare Part D claims · 11 beneficiaries · Optometrist avg: 257
Generic prescribing
18%
generic claims · 82% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JOSEPH PARKS, O.D. is a Optometrist ([object Object]) practicing in BELGRADE, Montana with a Medicare Part D prescribing footprint of 28 claims across 11 beneficiaries — 82% brand-name prescribing .

What stands out: JOSEPH PARKS, O.D. filed 28 Medicare Part D claims in 2023 across BELGRADE, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JOSEPH PARKS, O.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/14/2006

NPI 1255493599

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

28 89% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Montana

How Optometrist compares to other specialties among Montana providers

Montana providers

Optometrist share within Montana

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

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).

JOSEPH PARKS, O.D. is a Optometrist provider practicing in BELGRADE, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1255493599. 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.

JOSEPH PARKS, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 127 VILLAGE DR, BELGRADE, MT, 59714, with a listed phone of (406) 388-9661. NPI 1255493599 was issued on 12/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKS 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 28 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $4K in drug spend, split 82% brand-name and 18% 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

127 VILLAGE DR
BELGRADE, MT 59714

Provider Details

NPI 1255493599
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 12/14/2006

Brand vs generic prescribing mix · Brand-heavy

JOSEPH PARKS, O.D. — brand share 82.0%
Specialty average (est.)

82% brand-name claims vs 18% generic, on 28 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.

28
Total Claims
$4K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37
Total Day Supply
817
Brand vs Generic
82% brand / 18% generic
Brand Drug Cost
$1K

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.07

Optometrist Overview

How JOSEPH PARKS, O.D. fits within the Optometrist landscape nationally.

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

JOSEPH PARKS, O.D.'s 28 claims are below the specialty average of 257.

Nearby Optometrist Providers in Montana

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

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

Frequently Asked Questions

What is JOSEPH PARKS, O.D.'s specialty?
JOSEPH PARKS, O.D. specializes in Optometrist and practices in BELGRADE, Montana. Credentials: O.D..
How much does JOSEPH PARKS, O.D. prescribe under Medicare Part D?
In 2023, JOSEPH PARKS, O.D. wrote 28 Medicare Part D claims totaling $4K in drug costs for 11 beneficiaries.
Where is JOSEPH PARKS, O.D. located?
JOSEPH PARKS, O.D. is located at 127 VILLAGE DR, BELGRADE, MT, 59714. Phone: (406) 388-9661.
What is JOSEPH PARKS, O.D.'s NPI number?
JOSEPH PARKS, O.D.'s National Provider Identifier (NPI) is 1255493599, issued on 12/14/2006.
Does JOSEPH PARKS, O.D. prescribe more brand-name or generic drugs?
JOSEPH PARKS, O.D.'s prescribing is 82% brand-name and 18% generic drugs by claim count, with $1K 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.
Does JOSEPH PARKS, O.D. accept Medicare?
JOSEPH PARKS, O.D. appears in CMS Medicare data with 28 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH PARKS, O.D.'s credentials?
JOSEPH PARKS, O.D.'s NPI is 1255493599 with credentials O.D.. 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