NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1548315435
Verify on CMS → Victor Rostapshov
Hematology (Internal Medicine) Physician in Spokane Valley, 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 1,436 in Hematology (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
492
Medicare Part D claims · 90 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.2/100
▲ 2 pts above national avg 83.1 · Above neutral
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
Victor Rostapshov reported a CMS MIPS final score of 85.2/100 - above the 83.1 national average - and filed 492 Medicare Part D claims in 2023.
- 85.2/100
- MIPS score · +2 vs avg
- 492
- Part D claims, 2023
- 85%
- generic prescribing
- 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.
Victor Rostapshov's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
85 49th percentile higher than 49% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Victor Rostapshov sits
This provider among hematology (internal medicine) physician peers
Across the 570 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Victor Rostapshov writes more Part D claims than 46% of them and scores higher on MIPS quality than 55% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Victor Rostapshov. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Victor Rostapshov practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Victor Rostapshov?
High performer (top quartile)Primary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
492 29% vs specialty avg
MIPS final score
85.2/100 2.1 pts vs avg
Specialty distribution in Washington
How Hematology (Internal Medicine) Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Victor Rostapshov's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average
- MIPS Final Score
- 85.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology (Internal Medicine) Physician) - 85.2/100 vs national avg 83.1
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).
Victor Rostapshov appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider at 1204 N VERCLER RD, Spokane Valley, WA, 99216, with a listed phone of (509) 228-1000. NPI 1548315435 was issued on 01/24/2007.
Medicare Part D records for calendar year 2023 show 492 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $829K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 5.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.2/100 for the 2023 performance year (Quality 86.4, Cost 67.7), compared with the national average of 83.1.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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 | 1548315435 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Gender | Male |
| NPI Issued | 01/24/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.2178
Final Score
Avg: 83.1
86.3944
Quality
67.6649
Cost
96
Promoting Interoperability
Reporting: Group practice
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 Victor Rostapshov. To verify Victor Rostapshov'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 · Typical
Victor Rostapshov - brand share 15.0%
Hematology (Internal Medicine) Physician average
15% brand-name claims vs 85% generic, on 492 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.
492
Total Claims
$829K
Total Drug Cost
90
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 601
- Total Day Supply
- 14,071
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $724K
- Generic Drug Cost
- $105K
- Opioid Claims
- 26 (5.3% rate)
- Antibiotic Claims
- 37
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 2.46
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Victor Rostapshov prescribes most
Top Medicare Part D drugs by claim count, 2023
- Dexamethasone
Dexamethasone
51 claims
- Acyclovir
Acyclovir
47 claims
- Anastrozole
Anastrozole
35 claims
- Prochlorperazine M…
Prochlorperazine Maleate
34 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
21 claims
- Letrozole 17
Letrozole
17 claims
- Olanzapine 16
Olanzapine
16 claims
- Exemestane 15
Exemestane
15 claims
| Drug | Claims |
|---|---|
| Dexamethasone | 51 |
| Acyclovir | 47 |
| Anastrozole | 35 |
| Prochlorperazine Maleate | 34 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 21 |
| Letrozole | 17 |
| Olanzapine | 16 |
| Exemestane | 15 |
| Hydroxyurea | 15 |
| Ondansetron Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in WA →
All providers in Washington →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Victor Rostapshov fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Victor Rostapshov's 492 claims are below the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Rostapshov.
Dr. Mirela Andrei
M.D.
Spokane, WA
Dr. Gabriela Ballester
M.D.
Spokane Valley, WA
Dr. Pamela Becker
MD, PHD
Seattle, WA
Dr. Adriana Bello
MD
Seattle, WA
Dr. Aaron Boothby
MD
Seattle, WA
Compare Hematology (Internal 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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (Internal 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 Victor Rostapshov's specialty? ▼
Victor Rostapshov specializes in Hematology (Internal Medicine) Physician and practices in Spokane Valley, Washington.
How much does Victor Rostapshov prescribe under Medicare Part D? ▼
In 2023, Victor Rostapshov wrote 492 Medicare Part D claims totaling $829K in drug costs for 90 beneficiaries.
What is Victor Rostapshov's Medicare quality score? ▼
Victor Rostapshov has a CMS MIPS Final Score of 85.2/100 (Quality: 86.4, Cost: 67.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Victor Rostapshov located? ▼
Victor Rostapshov is located at 1204 N VERCLER RD, Spokane Valley, WA, 99216. Phone: (509) 228-1000.
What is Victor Rostapshov's NPI number? ▼
Victor Rostapshov's National Provider Identifier (NPI) is 1548315435, issued on 01/24/2007.
Does Victor Rostapshov prescribe more brand-name or generic drugs? ▼
Victor Rostapshov's prescribing is 15% brand-name and 85% generic drugs by claim count, with $724K in brand drug costs.
Does Victor Rostapshov prescribe opioids? ▼
Yes, Victor Rostapshov had 26 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Victor Rostapshov prescribe most often? ▼
Based on 2023 Medicare Part D data, Victor Rostapshov's most frequently prescribed drugs include Dexamethasone, Acyclovir, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Victor Rostapshov accept Medicare? ▼
Victor Rostapshov appears in CMS Medicare data with 492 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Victor Rostapshov's credentials? ▼
Victor Rostapshov's NPI is 1548315435. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.