NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1225004120 M.D.
Verify on CMS → Charles Anderson, M.D.
Critical Care Medicine (Internal Medicine) Physician in Tacoma, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,916 in Critical Care Medicine (Internal Medicine) 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
421
Medicare Part D claims · 66 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Charles Anderson, M.D. filed 421 Medicare Part D claims in 2024 as a Critical Care Medicine (Internal Medicine) Physician in Tacoma, Washington, prescribing 70% generic.
- 421
- Part D claims, 2024
- 70%
- generic prescribing
- ≥61st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Charles Anderson, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1225004120), first enumerated 02/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 421 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Charles Anderson, M.D.'s individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Anderson with other Critical Care Medicine (Internal Medicine) Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Washington
- Dr. Joseph Adler, MD Seattle, WA
- Dr. Sanjay Agarwal, MD, FCCP, FAASM Seattle, WA
- Dr. Vanjul Agarwal, M.D Vancouver, WA
- Dr. Fawaz Ahmad, MD, MS Seattle, WA
- Dr. Jeffrey Albores, M.D. Tacoma, WA
- Dr. Fahad Alroumi, M.D. Tacoma, WA
Other specialties in Tacoma: Counselor (1,118) · Behavior Technician (922) · Mental Health Counselor (737) · Registered Nurse (504)
CMS NPPES provider registry desk
NPI 1225004120 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1225004120
- ENUM-LEGACY 2006
- TAX-MID 7K Critical Care
- RX-LIGHT 421
- BOOK-THIN 136 in Washington
- PHOTO-ENUM Michael Miller, MD · 2006
Charles Anderson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
421 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Charles Anderson, M.D. 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 Charles Anderson, M.D.?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
421 62% vs specialty avg
Specialty distribution in Washington
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Washington 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 (Internal Medicine) 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).
Practice Address
Provider Details
| NPI | 1225004120 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/28/2006 |
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 Charles Anderson, M.D.. To verify Charles Anderson, 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 · Above average
Charles Anderson, M.D. - brand share 30.0%
Critical Care Medicine (Internal Medicine) Physician average
30% brand-name claims vs 70% generic, on 421 2024 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 2024.
421
Total Claims
$216K
Total Drug Cost
66
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 592.1
- Total Day Supply
- 17,298
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $204K
- Generic Drug Cost
- $12K
- Opioid Claims
- 26 (6.2% rate)
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 1.57
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Charles Anderson, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Modafinil
Modafinil
78 claims
- Stiolto Respimat
Stiolto Respimat
40 claims
- Wixela Inhub
Wixela Inhub
33 claims
- Zolpidem Tartrate 25
Zolpidem Tartrate
25 claims
- Albuterol Sulfate … 24
Albuterol Sulfate Hfa
24 claims
- Gabapentin 24
Gabapentin
24 claims
- Alprazolam 20
Alprazolam
20 claims
- Spiriva Respimat 19
Spiriva Respimat
19 claims
| Drug | Claims |
|---|---|
| Modafinil | 78 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 40 |
| Wixela Inhub Fluticasone Propion/Salmeterol | 33 |
| Zolpidem Tartrate | 25 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 24 |
| Gabapentin | 24 |
| Alprazolam | 20 |
| Spiriva Respimat Tiotropium Bromide | 19 |
| Combivent Respimat Ipratropium/Albuterol Sulfate | 17 |
| Methylphenidate Hcl | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in WA →
All providers in Washington →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Charles Anderson, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider
Charles Anderson, M.D.'s 421 claims are below the specialty average of 1,103.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Anderson, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Anderson.
One of 136 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Washington, 11 are shown on this page.
Frequently Asked Questions
What is Charles Anderson, M.D.'s specialty? ▼
Charles Anderson, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Tacoma, Washington. Credentials: M.D..
How much does Charles Anderson, M.D. prescribe under Medicare Part D? ▼
In 2024, Charles Anderson, M.D. wrote 421 Medicare Part D claims totaling $216K in drug costs for 66 beneficiaries.
Where is Charles Anderson, M.D. located? ▼
Charles Anderson, M.D. is located at 209 MARTIN LUTHER KING JR WAY, Tacoma, WA, 98405. Phone: (253) 596-3300.
What is Charles Anderson, M.D.'s NPI number? ▼
Charles Anderson, M.D.'s National Provider Identifier (NPI) is 1225004120, issued on 02/28/2006.
Does Charles Anderson, M.D. prescribe more brand-name or generic drugs? ▼
Charles Anderson, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $204K in brand drug costs.
Does Charles Anderson, M.D. prescribe opioids? ▼
Yes, Charles Anderson, M.D. had 26 opioid claims in 2024 with an opioid prescribing rate of 6.2%.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Charles Anderson, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Charles Anderson, M.D.'s most frequently prescribed drugs include Modafinil, Stiolto Respimat, Wixela Inhub. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Anderson, M.D. accept Medicare? ▼
Charles Anderson, M.D. appears in CMS Medicare data with 421 Part D claims and 66 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Anderson, M.D.'s credentials? ▼
Charles Anderson, M.D.'s NPI is 1225004120 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
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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.