NPI registry status
Active
2026 NPPES data Interventional Pain Medicine Physician NPI 1992702039 M.D.
Verify on CMS → Wladislaw Ellis, M.D.
Interventional Pain Medicine Physician in Grass Valley, 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 1,528 in Interventional Pain 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
207
Medicare Part D claims · 19 beneficiaries · Interventional Pain Medicine Physician avg: 2K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Wladislaw Ellis, M.D. filed 207 Medicare Part D claims in 2023 as a Interventional Pain Medicine Physician in Grass Valley, California, prescribing 88% generic.
- 207
- Part D claims, 2023
- 88%
- generic prescribing
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.
Wladislaw Ellis, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
207 49th percentile higher than 49% 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)
Wladislaw Ellis, 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 Wladislaw Ellis, M.D.?
Quality data not reportedPrimary specialty
Interventional Pain Medicine Physician
Medicare Part D claims
207 91% vs specialty avg
Specialty distribution in California
How Interventional Pain Medicine 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 Interventional Pain 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).
Wladislaw Ellis, M.D. appears in the CMS NPPES registry as a Interventional Pain Medicine Physician provider holding M.D. credentials at 13847 MALLORY CT, Grass Valley, CA, 95949, with a listed phone of (510) 849-4703. NPI 1992702039 was issued on 07/05/2005.
Medicare Part D records for calendar year 2023 show 207 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $23K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 41.5%.
Interventional Pain Medicine Physician is a narrow specialty nationwide, with 1,528 enrolled providers across 53 states and an average of 2,197 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 | 1992702039 |
|---|---|
| Specialty | Interventional Pain Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/05/2005 |
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 Wladislaw Ellis, M.D.. To verify Wladislaw Ellis, M.D.'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.
Brand vs generic prescribing mix · Typical
Wladislaw Ellis, M.D. - brand share 12.0%
Interventional Pain Medicine Physician average
12% brand-name claims vs 88% generic, on 207 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.
207
Total Claims
$23K
Total Drug Cost
19
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 219
- Total Day Supply
- 6,393
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $19K
- Generic Drug Cost
- $3K
- Opioid Claims
- 86 (41.5% rate)
Patient Demographics
- Average Patient Age
- 66.3 years
- Avg HCC Risk Score
- 1.32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Wladislaw Ellis, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diazepam
Diazepam
84 claims
- Hydromorphone Hcl 26
Hydromorphone Hcl
26 claims
- Lorazepam 13
Lorazepam
13 claims
- Oxycodone-Acetamin… 12
Oxycodone-Acetaminophen
12 claims
- Oxycontin 12
Oxycontin
12 claims
- Xtampza Er 12
Xtampza Er
12 claims
| Drug | Claims |
|---|---|
| Diazepam | 84 |
| Hydromorphone Hcl | 26 |
| Lorazepam | 13 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 12 |
| Oxycontin Oxycodone Hcl | 12 |
| Xtampza Er Oxycodone Myristate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Interventional Pain Medicine Physician in CA →
All providers in California →
Compare specialties →
Interventional Pain Medicine Physician Overview
How Wladislaw Ellis, M.D. fits within the Interventional Pain Medicine Physician landscape nationally.
1,528
Interventional Pain Medicine Physician Providers in US
53
States with Interventional Pain Medicine Physician
2,197
Avg Claims per Provider
Wladislaw Ellis, M.D.'s 207 claims are below the specialty average of 2,197.
Nearby Interventional Pain Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ellis.
Dr. Hussein Abdulhadi
M.D.
La Mesa, CA
Dr. Nader Achackzad
M.D.
Santa Clara, CA
Dr. Patrick Akin
DO
Turlock, CA
Dr. Kais Alsharif
MD
Long Beach, CA
Dr. Pari Azari
M.D.
Clearlake, CA
Compare Interventional Pain Medicine 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Interventional Pain Medicine 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 Wladislaw Ellis, M.D.'s specialty? ▼
Wladislaw Ellis, M.D. specializes in Interventional Pain Medicine Physician and practices in Grass Valley, California. Credentials: M.D..
How much does Wladislaw Ellis, M.D. prescribe under Medicare Part D? ▼
In 2023, Wladislaw Ellis, M.D. wrote 207 Medicare Part D claims totaling $23K in drug costs for 19 beneficiaries.
Where is Wladislaw Ellis, M.D. located? ▼
Wladislaw Ellis, M.D. is located at 13847 MALLORY CT, Grass Valley, CA, 95949. Phone: (510) 849-4703.
What is Wladislaw Ellis, M.D.'s NPI number? ▼
Wladislaw Ellis, M.D.'s National Provider Identifier (NPI) is 1992702039, issued on 07/05/2005.
Does Wladislaw Ellis, M.D. prescribe more brand-name or generic drugs? ▼
Wladislaw Ellis, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $19K in brand drug costs.
Does Wladislaw Ellis, M.D. prescribe opioids? ▼
Yes, Wladislaw Ellis, M.D. had 86 opioid claims in 2023 with an opioid prescribing rate of 41.5%.
How many Interventional Pain Medicine Physician providers are there in the US? ▼
There are 1,528 Interventional Pain Medicine Physician providers across 53 states in the US. The average Interventional Pain Medicine Physician provider writes 2,197 Medicare Part D claims per year.
What drugs does Wladislaw Ellis, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Wladislaw Ellis, M.D.'s most frequently prescribed drugs include Diazepam, Hydromorphone Hcl, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Wladislaw Ellis, M.D. accept Medicare? ▼
Wladislaw Ellis, M.D. appears in CMS Medicare data with 207 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Wladislaw Ellis, M.D.'s credentials? ▼
Wladislaw Ellis, M.D.'s NPI is 1992702039 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 (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.