2026 NPPES data Ophthalmology Physician NPI 1588954119 M.D.
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ZACHARY JOOS, M.D.

Ophthalmology Physician in KIRKLAND, Washington. 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
642
Medicare Part D claims · 260 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.5/100
▼ 1 pts below national avg 83.1 · [object Object]
Industry payments
$339.96
19 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ZACHARY JOOS, M.D. reported a CMS MIPS final score of 82.5/100 — below the 83.1 national average — and filed 642 Medicare Part D claims in 2023.

82.5/100
MIPS score · -1 vs avg
642
Part D claims, 2023
92%
generic prescribing
Likely
board-certified (heuristic)

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.

ZACHARY JOOS, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

83 39th percentile higher than 39% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ZACHARY JOOS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ZACHARY JOOS, M.D.?

Near national average

NPI registry status

Active

Issued 04/16/2011

NPI 1588954119

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

642 55% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

82.5/100 0.5999999999999943% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Washington

How Ophthalmology Physician compares to other specialties among Washington providers

Washington providers

Ophthalmology Physician share within Washington

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

Medicare quality performance — MIPS

ZACHARY JOOS, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

Near national average
MIPS Final Score
82.5/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 82.5/100 vs national avg 83.1

0%100%National avg83%82.5%
MIPS final score (Ophthalmology Physician) — 82.5/100 vs national avg 83.1

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).

ZACHARY JOOS, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 16 CENTRAL WAY, KIRKLAND, WA, 98033, with a listed phone of (425) 655-1200. NPI 1588954119 was issued on 04/16/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JOOS 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 642 prescription claims written by this provider, covering 260 Medicare beneficiaries and totaling roughly $8K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 25.4%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.5/100 for the 2023 performance year (Quality 65), compared with the national average of 83.1.

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

16 CENTRAL WAY
KIRKLAND, WA 98033

Provider Details

NPI 1588954119
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 04/16/2011

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

82.5
Final Score
Avg: 83.1
65
Quality

Reporting: Individual

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 ZACHARY JOOS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$340

Largest payer

Amgen 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 — Washington WMC 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 ~34K Washington medical licensees in 2023 — they are NOT specific to ZACHARY JOOS, M.D.. To verify ZACHARY JOOS, M.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

ZACHARY JOOS, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 642 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.

642
Total Claims
$8K
Total Drug Cost
260
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
662
Total Day Supply
6,435
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$2K
Generic Drug Cost
$6K
Opioid Claims
163 (25.4% rate)
Antibiotic Claims
30

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
0.97
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

What ZACHARY JOOS, M.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
Erythromycin
Erythromycin Base
276
Acetaminophen-Codeine
Acetaminophen With Codeine
151
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
96
Prednisolone Acetate
23
Triazolam
11
Valacyclovir
Valacyclovir Hcl
11

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

Ophthalmology Physician Overview

How ZACHARY JOOS, M.D. 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

ZACHARY JOOS, M.D.'s 642 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Washington

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

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

Frequently Asked Questions

What is ZACHARY JOOS, M.D.'s specialty?
ZACHARY JOOS, M.D. specializes in Ophthalmology Physician and practices in KIRKLAND, Washington. Credentials: M.D..
How much does ZACHARY JOOS, M.D. prescribe under Medicare Part D?
In 2023, ZACHARY JOOS, M.D. wrote 642 Medicare Part D claims totaling $8K in drug costs for 260 beneficiaries.
What is ZACHARY JOOS, M.D.'s Medicare quality score?
ZACHARY JOOS, M.D. has a CMS MIPS Final Score of 82.5/100 (Quality: 65). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ZACHARY JOOS, M.D. located?
ZACHARY JOOS, M.D. is located at 16 CENTRAL WAY, KIRKLAND, WA, 98033. Phone: (425) 655-1200.
What is ZACHARY JOOS, M.D.'s NPI number?
ZACHARY JOOS, M.D.'s National Provider Identifier (NPI) is 1588954119, issued on 04/16/2011.
Does ZACHARY JOOS, M.D. prescribe more brand-name or generic drugs?
ZACHARY JOOS, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $2K in brand drug costs.
Does ZACHARY JOOS, M.D. prescribe opioids?
Yes, ZACHARY JOOS, M.D. had 163 opioid claims in 2023 with an opioid prescribing rate of 25.4%.
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.
What drugs does ZACHARY JOOS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ZACHARY JOOS, M.D.'s most frequently prescribed drugs include Erythromycin, Acetaminophen-Codeine, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZACHARY JOOS, M.D. accept Medicare?
ZACHARY JOOS, M.D. appears in CMS Medicare data with 642 Part D claims and 260 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZACHARY JOOS, M.D.'s credentials?
ZACHARY JOOS, M.D.'s NPI is 1588954119 with credentials M.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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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