2026 NPPES data Ophthalmology Physician NPI 1952983801
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BRENNA BULLOCK

Ophthalmology Physician in TUCSON, Arizona. 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
55
Medicare Part D claims · 24 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$68.87
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BRENNA BULLOCK is a Ophthalmology Physician ([object Object]) practicing in TUCSON, Arizona with a Medicare Part D prescribing footprint of 55 claims across 24 beneficiaries — 27% brand-name prescribing . Industry payments of $68.87 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BRENNA BULLOCK filed 55 Medicare Part D claims in 2023 across TUCSON, Arizona. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

BRENNA BULLOCK practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

BRENNA BULLOCK at a glance

Quality data not reported

NPI registry status

Active

Issued 04/21/2021

NPI 1952983801

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

55 96% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Arizona

How Ophthalmology Physician compares to other specialties among Arizona providers

Arizona providers

Ophthalmology Physician share within Arizona

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Arizona

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — 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).

BRENNA BULLOCK is a Ophthalmology Physician provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1952983801. 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.

BRENNA BULLOCK appears in the CMS NPPES registry as a Ophthalmology Physician provider at 655 N ALVERNON WAY STE 204, TUCSON, AZ, 85711, with a listed phone of (248) 444-5331. NPI 1952983801 was issued on 04/21/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BULLOCK 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 55 prescription claims written by this provider, covering 24 Medicare beneficiaries and totaling roughly $4K 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

655 N ALVERNON WAY STE 204
TUCSON, AZ 85711

Provider Details

NPI 1952983801
Specialty Ophthalmology Physician
Gender Female
NPI Issued 04/21/2021

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 BRENNA BULLOCK. Source: openpaymentsdata.cms.gov.

Total received

$69

Largest payer

Glaukos Corporation

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.

Brand vs generic prescribing mix · Above average

BRENNA BULLOCK — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 55 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.

55
Total Claims
$4K
Total Drug Cost
24
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
80
Total Day Supply
1,908
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$3K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
1.57

Ophthalmology Physician Overview

How BRENNA BULLOCK fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

BRENNA BULLOCK's 55 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Arizona

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

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRENNA BULLOCK's specialty?
BRENNA BULLOCK specializes in Ophthalmology Physician and practices in TUCSON, Arizona.
How much does BRENNA BULLOCK prescribe under Medicare Part D?
In 2023, BRENNA BULLOCK wrote 55 Medicare Part D claims totaling $4K in drug costs for 24 beneficiaries.
Where is BRENNA BULLOCK located?
BRENNA BULLOCK is located at 655 N ALVERNON WAY STE 204, TUCSON, AZ, 85711. Phone: (248) 444-5331.
What is BRENNA BULLOCK's NPI number?
BRENNA BULLOCK's National Provider Identifier (NPI) is 1952983801, issued on 04/21/2021.
Does BRENNA BULLOCK prescribe more brand-name or generic drugs?
BRENNA BULLOCK's prescribing is 27% brand-name and 73% generic drugs by claim count, with $3K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
Does BRENNA BULLOCK accept Medicare?
BRENNA BULLOCK appears in CMS Medicare data with 55 Part D claims and 24 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRENNA BULLOCK's credentials?
BRENNA BULLOCK's NPI is 1952983801. 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