NPI registry status
Active
2026 NPPES data Specialist NPI 1952345514 M.D.
Verify on CMS → Geoffrey Stiller, M.D.
Specialist in Spokane, 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 69,567 in Specialist, 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
78
Medicare Part D claims · 22 beneficiaries · Specialist avg: 2K
Industry payments
$327.66
10 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Geoffrey Stiller, M.D. filed 78 Medicare Part D claims in 2024 as a Specialist in Spokane, Washington.
- 78
- Part D claims, 2024
- $327.66
- industry payments (Sunshine Act)
- ≥0th
- 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 Geoffrey Stiller, 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 1952345514), first enumerated 06/15/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 78 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$327.66 in reported industry payments (10 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Geoffrey Stiller, 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.
CMS NPPES provider registry desk
NPI 1952345514 · Specialist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1952345514
- ENUM-LEGACY 2006
- TAX-MEGA 70K Specialist
- RX-TRACE 78
- BOOK-LIGHT 2,856 in Washington
- PHOTO-ENUM Nora Costello, PT · 2006
Geoffrey Stiller, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
78 ≥ 0th percentile 0% 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
What does the federal data show about Geoffrey Stiller, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
78 95% vs specialty avg
Specialty distribution in Washington
How Specialist 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 Specialist. 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 | 1952345514 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/15/2006 |
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 Geoffrey Stiller, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$328
Largest payer
ABBVIE 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 Geoffrey Stiller, M.D.. To verify Geoffrey Stiller, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
78
Total Claims
$593
Total Drug Cost
22
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 80.033
- Total Day Supply
- 896
- Brand Drug Cost
- $0
- Generic Drug Cost
- $593
- Opioid Claims
- 13 (16.7% rate)
- Antibiotic Claims
- 21
Patient Demographics
- Average Patient Age
- 57.4 years
- Avg HCC Risk Score
- 0.94
- Age Distribution
- <65: 11, 65-74: N/A, 75-84: N/A, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Geoffrey Stiller, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ibuprofen
Ibuprofen
13 claims
- Ondansetron Hcl
Ondansetron Hcl
11 claims
- Oxycodone Hcl
Oxycodone Hcl
11 claims
| Drug | Claims |
|---|---|
| Ibuprofen | 13 |
| Ondansetron Hcl | 11 |
| Oxycodone Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Geoffrey Stiller, M.D. fits within the Specialist landscape nationally.
69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider
Geoffrey Stiller, M.D.'s 78 claims are below the specialty average of 1,524.
Nationwide Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Stiller, 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 Specialist Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Stiller.
One of 2,856 Specialist providers enrolled in Washington, 5 are shown here.
Ruth Aaronson
MA
Seattle, WA
Patti Abbott
LMP
Seattle, WA
Dr. Khaled Abdel-Rahman
M.D.
Auburn, WA
Joni Abdo
LMP
Seattle, WA
Merry Abeel
Clyde Hill, WA
Compare Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Geoffrey Stiller, M.D.'s specialty? ▼
Geoffrey Stiller, M.D. specializes in Specialist and practices in Spokane, Washington. Credentials: M.D..
How much does Geoffrey Stiller, M.D. prescribe under Medicare Part D? ▼
In 2024, Geoffrey Stiller, M.D. wrote 78 Medicare Part D claims totaling $593 in drug costs for 22 beneficiaries.
Where is Geoffrey Stiller, M.D. located? ▼
Geoffrey Stiller, M.D. is located at 805 W 5TH AVE STE 619, Spokane, WA, 99204. Phone: (509) 747-5773.
What is Geoffrey Stiller, M.D.'s NPI number? ▼
Geoffrey Stiller, M.D.'s National Provider Identifier (NPI) is 1952345514, issued on 06/15/2006.
Does Geoffrey Stiller, M.D. prescribe opioids? ▼
Yes, Geoffrey Stiller, M.D. had 13 opioid claims in 2024 with an opioid prescribing rate of 16.7%.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does Geoffrey Stiller, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Geoffrey Stiller, M.D.'s most frequently prescribed drugs include Ibuprofen, Ondansetron Hcl, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Geoffrey Stiller, M.D. accept Medicare? ▼
Geoffrey Stiller, M.D. appears in CMS Medicare data with 78 Part D claims and 22 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Geoffrey Stiller, M.D.'s credentials? ▼
Geoffrey Stiller, M.D.'s NPI is 1952345514 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.