NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1164470415 MD
Verify on CMS → Natalya Warner, MD
Rheumatology 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 6,181 in Rheumatology 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
1K
Medicare Part D claims · 212 beneficiaries · Rheumatology Physician avg: 2K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Natalya Warner, MD filed 1,212 Medicare Part D claims in 2023 as a Rheumatology Physician in Tacoma, Washington.
- 1K
- Part D claims, 2023
- 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.
Natalya Warner, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,212 Top 22% higher than 78% 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 certification likely (heuristic, not verified)
Natalya Warner, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Natalya Warner, MD?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
1,212 41% vs specialty avg
Specialty distribution in Washington
How Rheumatology 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 Rheumatology 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).
Natalya Warner, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 209 MARTIN LUTHER KING JR WAY, Tacoma, WA, 98405, with a listed phone of (253) 596-3300. NPI 1164470415 was issued on 05/05/2006.
Medicare Part D records for calendar year 2023 show 1,212 prescription claims written by this provider, covering 212 Medicare beneficiaries and totaling roughly $365K in drug spend.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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 | 1164470415 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 05/05/2006 |
Hospital and facility affiliations
Facilities where Natalya Warner, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Kaiser Foundation Health Plan OF Washington
Tacoma, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Natalya Warner, MD. To verify Natalya Warner, MD'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,212
Total Claims
$365K
Total Drug Cost
212
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,689
- Total Day Supply
- 79,911
- Generic Drug Cost
- $28K
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.46
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 23, 65-74: 98, 75-84: 79, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Natalya Warner, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
388 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
244 claims
- Methotrexate
Methotrexate
178 claims
- Alendronate Sodium 55
Alendronate Sodium
55 claims
- Gabapentin 50
Gabapentin
50 claims
- Leflunomide 46
Leflunomide
46 claims
- Cevimeline Hcl 32
Cevimeline Hcl
32 claims
- Allopurinol 28
Allopurinol
28 claims
| Drug | Claims |
|---|---|
| Prednisone | 388 |
| Hydroxychloroquine Sulfate | 244 |
| Methotrexate Methotrexate Sodium | 178 |
| Alendronate Sodium | 55 |
| Gabapentin | 50 |
| Leflunomide | 46 |
| Cevimeline Hcl | 32 |
| Allopurinol | 28 |
| Amjevita(Cf) Autoinjector Adalimumab-Atto | 18 |
| Cosentyx Sensoready (2 Pens) Secukinumab | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Natalya Warner, MD fits within the Rheumatology Physician landscape nationally.
6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Natalya Warner, MD's 1,212 claims are below the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Warner.
Dr. Jowairiyya Ahmad
M.D.
Lacey, WA
Dr. Hebatalla Allam
M.D.
Kennewick, WA
Dr. Brent Appleton
MD
Seattle, WA
Dr. Percy Balderia
MD
Seattle, WA
Dr. John Baldwin
MD
Bellevue, WA
Compare Rheumatology Physician nationally: see state-by-state distribution →
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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology 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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Frequently Asked Questions
What is Natalya Warner, MD's specialty? ▼
Natalya Warner, MD specializes in Rheumatology Physician and practices in Tacoma, Washington. Credentials: MD.
How much does Natalya Warner, MD prescribe under Medicare Part D? ▼
In 2023, Natalya Warner, MD wrote 1,212 Medicare Part D claims totaling $365K in drug costs for 212 beneficiaries.
Where is Natalya Warner, MD located? ▼
Natalya Warner, MD is located at 209 MARTIN LUTHER KING JR WAY, Tacoma, WA, 98405. Phone: (253) 596-3300.
What is Natalya Warner, MD's NPI number? ▼
Natalya Warner, MD's National Provider Identifier (NPI) is 1164470415, issued on 05/05/2006.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Natalya Warner, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Natalya Warner, MD's most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natalya Warner, MD accept Medicare? ▼
Natalya Warner, MD appears in CMS Medicare data with 1,212 Part D claims and 212 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natalya Warner, MD's credentials? ▼
Natalya Warner, MD's NPI is 1164470415 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.