2026 NPPES data Optometrist NPI 1912977877 O.D.
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JOHN CARTER, O.D.

Optometrist in BONHAM, Texas. 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
556
Medicare Part D claims · 171 beneficiaries · Optometrist avg: 257
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$15.11
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN CARTER, O.D. filed 556 Medicare Part D claims in 2023 as a Optometrist in BONHAM, Texas, prescribing 51% generic.

556
Part D claims, 2023
51%
generic prescribing
$15.11
industry payments (Sunshine Act)

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.

JOHN CARTER, O.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

556 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 JOHN CARTER, O.D.?

Quality data not reported

NPI registry status

Active

Issued 01/24/2006

NPI 1912977877

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

556 116% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Texas

How Optometrist compares to other specialties among Texas providers

Texas providers

Optometrist share within Texas

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

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).

JOHN CARTER, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 1230 N CENTER ST, BONHAM, TX, 75418, with a listed phone of (903) 583-8930. NPI 1912977877 was issued on 01/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARTER 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 556 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $53K in drug spend, split 49% brand-name and 51% 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

1230 N CENTER ST
BONHAM, TX 75418

Provider Details

NPI 1912977877
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 01/24/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JOHN CARTER, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$15

Largest payer

LKC Technologies, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to JOHN CARTER, O.D.. To verify JOHN CARTER, O.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

JOHN CARTER, O.D. — brand share 49.0%
Specialty average (est.)

49% brand-name claims vs 51% generic, on 556 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.

556
Total Claims
$53K
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
679
Total Day Supply
16,941
Brand vs Generic
49% brand / 51% generic
Brand Drug Cost
$43K
Generic Drug Cost
$10K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
1.48
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 JOHN CARTER, O.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
190
Prednisolone Acetate
103
Brimonidine Tartrate
31
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
31
Alphagan P
Brimonidine Tartrate
30
Lumigan
Bimatoprost
29
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
25
Doxycycline Hyclate
22
Timolol Maleate
19
Dorzolamide Hcl
11

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

Optometrist Overview

How JOHN CARTER, O.D. fits within the Optometrist landscape nationally.

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

JOHN CARTER, O.D.'s 556 claims are above the specialty average of 257.

Nearby Optometrist Providers in Texas

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

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

Frequently Asked Questions

What is JOHN CARTER, O.D.'s specialty?
JOHN CARTER, O.D. specializes in Optometrist and practices in BONHAM, Texas. Credentials: O.D..
How much does JOHN CARTER, O.D. prescribe under Medicare Part D?
In 2023, JOHN CARTER, O.D. wrote 556 Medicare Part D claims totaling $53K in drug costs for 171 beneficiaries.
Where is JOHN CARTER, O.D. located?
JOHN CARTER, O.D. is located at 1230 N CENTER ST, BONHAM, TX, 75418. Phone: (903) 583-8930.
What is JOHN CARTER, O.D.'s NPI number?
JOHN CARTER, O.D.'s National Provider Identifier (NPI) is 1912977877, issued on 01/24/2006.
Does JOHN CARTER, O.D. prescribe more brand-name or generic drugs?
JOHN CARTER, O.D.'s prescribing is 49% brand-name and 51% generic drugs by claim count, with $43K 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 JOHN CARTER, O.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHN CARTER, O.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN CARTER, O.D. accept Medicare?
JOHN CARTER, O.D. appears in CMS Medicare data with 556 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN CARTER, O.D.'s credentials?
JOHN CARTER, O.D.'s NPI is 1912977877 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