NPI registry status
Active
2026 NPPES data Critical Care Medicine (Anesthesiology) Physician NPI 1780737981 MD
Verify on CMS → Joannie Cathey Cook, MD
Critical Care Medicine (Anesthesiology) Physician in Los Angeles, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,398 in Critical Care Medicine (Anesthesiology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
423
Medicare Part D claims · 12 beneficiaries · Critical Care Medicine (Anesthesiology) Physician avg: 409
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Joannie Cathey Cook, MD filed 423 Medicare Part D claims in 2023 as a Critical Care Medicine (Anesthesiology) Physician in Los Angeles, California.
- 423
- Part D claims, 2023
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.
Joannie Cathey Cook, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
423 Top 38% higher than 62% of 1,370,886 prescribers
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
◑
Board-eligible specialty (heuristic, not verified)
Joannie Cathey Cook, MD 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).
What does the federal data show about Joannie Cathey Cook, MD?
Quality data not reportedPrimary specialty
Critical Care Medicine (Anesthesiology) Physician
Medicare Part D claims
423 3% vs specialty avg
Specialty distribution in California
How Critical Care Medicine (Anesthesiology) Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine (Anesthesiology) Physician. Verify directly:
How MIPS and board certification work
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).
Joannie Cathey Cook, MD appears in the CMS NPPES registry as a Critical Care Medicine (Anesthesiology) Physician provider holding MD credentials at 231 W VERNON AVE, Los Angeles, CA, 90037, with a listed phone of (310) 724-7448. NPI 1780737981 was issued on 01/19/2007.
Medicare Part D records for calendar year 2023 show 423 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $19K in drug spend, with an opioid prescribing rate of 11.8%.
Critical Care Medicine (Anesthesiology) Physician is a narrow specialty nationwide, with 1,398 enrolled providers across 46 states and an average of 409 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
Provider Details
| NPI | 1780737981 |
|---|---|
| Specialty | Critical Care Medicine (Anesthesiology) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 01/19/2007 |
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Joannie Cathey Cook, MD. To verify Joannie Cathey Cook, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
423
Total Claims
$19K
Total Drug Cost
12
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 643
- Total Day Supply
- 18,613
- Generic Drug Cost
- $8K
- Opioid Claims
- 50 (11.8% rate)
Patient Demographics
- Average Patient Age
- 77.8 years
- Avg HCC Risk Score
- 1.47
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joannie Cathey Cook, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Omeprazole
Omeprazole
34 claims
- Acetaminophen-Code…
Acetaminophen-Codeine
33 claims
- Atorvastatin Calcium
Atorvastatin Calcium
30 claims
- Benazepril Hcl
Benazepril Hcl
26 claims
- Losartan Potassium
Losartan Potassium
26 claims
- Ventolin Hfa
Ventolin Hfa
26 claims
- Pravastatin Sodium
Pravastatin Sodium
19 claims
- Gabapentin
Gabapentin
18 claims
| Drug | Claims |
|---|---|
| Omeprazole | 34 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 33 |
| Atorvastatin Calcium | 30 |
| Benazepril Hcl | 26 |
| Losartan Potassium | 26 |
| Ventolin Hfa Albuterol Sulfate | 26 |
| Pravastatin Sodium | 19 |
| Gabapentin | 18 |
| Tramadol Hcl | 17 |
| Breo Ellipta Fluticasone/Vilanterol | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Anesthesiology) Physician in CA →
All providers in California →
Compare specialties →
Critical Care Medicine (Anesthesiology) Physician Overview
How Joannie Cathey Cook, MD fits within the Critical Care Medicine (Anesthesiology) Physician landscape nationally.
1,398
Critical Care Medicine (Anesthesiology) Physician Providers in US
46
States with Critical Care Medicine (Anesthesiology) Physician
409
Avg Claims per Provider
Joannie Cathey Cook, MD's 423 claims are above the specialty average of 409.
Nearby Critical Care Medicine (Anesthesiology) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Cathey Cook.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine (Anesthesiology) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Joannie Cathey Cook, MD's specialty? ▼
Joannie Cathey Cook, MD specializes in Critical Care Medicine (Anesthesiology) Physician and practices in Los Angeles, California. Credentials: MD.
How much does Joannie Cathey Cook, MD prescribe under Medicare Part D? ▼
In 2023, Joannie Cathey Cook, MD wrote 423 Medicare Part D claims totaling $19K in drug costs for 12 beneficiaries.
Where is Joannie Cathey Cook, MD located? ▼
Joannie Cathey Cook, MD is located at 231 W VERNON AVE, Los Angeles, CA, 90037. Phone: (310) 724-7448.
What is Joannie Cathey Cook, MD's NPI number? ▼
Joannie Cathey Cook, MD's National Provider Identifier (NPI) is 1780737981, issued on 01/19/2007.
Does Joannie Cathey Cook, MD prescribe opioids? ▼
Yes, Joannie Cathey Cook, MD had 50 opioid claims in 2023 with an opioid prescribing rate of 11.8%.
How many Critical Care Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 1,398 Critical Care Medicine (Anesthesiology) Physician providers across 46 states in the US. The average Critical Care Medicine (Anesthesiology) Physician provider writes 409 Medicare Part D claims per year.
What drugs does Joannie Cathey Cook, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Joannie Cathey Cook, MD's most frequently prescribed drugs include Omeprazole, Acetaminophen-Codeine, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joannie Cathey Cook, MD accept Medicare? ▼
Joannie Cathey Cook, MD appears in CMS Medicare data with 423 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joannie Cathey Cook, MD's credentials? ▼
Joannie Cathey Cook, MD's NPI is 1780737981 with credentials MD. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.