NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1912107368 MD
Verify on CMS → Benjamin Solomon, MD
Hematology & Oncology Physician in Sioux Falls, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & Oncology 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
726
Medicare Part D claims · 146 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$257.28
6 payments · CMS Open Payments (Sunshine Act)
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
Benjamin Solomon, MD filed 726 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Sioux Falls, South Dakota, prescribing 62% generic.
- 726
- Part D claims, 2023
- 62%
- 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.
Benjamin Solomon, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
726 Top 29% higher than 71% 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)
Benjamin Solomon, 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 Benjamin Solomon, MD?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
726 14% vs specialty avg
Specialty distribution in South Dakota
How Hematology & Oncology Physician compares to other specialties among South Dakota 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 Hematology & Oncology 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).
Benjamin Solomon, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 1000 E. 23RD ST., Sioux Falls, SD, 57105, with a listed phone of (605) 322-6900. NPI 1912107368 was issued on 07/24/2007.
Medicare Part D records for calendar year 2023 show 726 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $3.3 million in drug spend, split 38% brand-name and 62% generic by claim count, with an opioid prescribing rate of 3.9%.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 enrolled providers across 54 states and an average of 847 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 | 1912107368 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/24/2007 |
Hospital and facility affiliations
Facilities where Benjamin Solomon, 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.
Avera Mckennan
Sioux Falls, SD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Benjamin Solomon, MD. Source: openpaymentsdata.cms.gov.
Total received
$257
Largest payer
Elekta, 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.
Brand vs generic prescribing mix · Above average
Benjamin Solomon, MD - brand share 38.0%
Hematology & Oncology Physician average
38% brand-name claims vs 62% generic, on 726 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.
726
Total Claims
$3.3M
Total Drug Cost
146
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 854
- Total Day Supply
- 23,521
- Brand vs Generic
- 38% brand / 62% generic
- Brand Drug Cost
- $2.9M
- Generic Drug Cost
- $321K
- Opioid Claims
- 28 (3.9% rate)
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 2.32
- Gender Split
- 36% female / 64% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Benjamin Solomon, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
71 claims
- Abiraterone Acetate
Abiraterone Acetate
62 claims
- Xtandi
Xtandi
47 claims
- Eliquis
Eliquis
43 claims
- Levothyroxine Sodium
Levothyroxine Sodium
41 claims
- Gabapentin
Gabapentin
32 claims
- Hydroxyurea 28
Hydroxyurea
28 claims
- Ondansetron Hcl 23
Ondansetron Hcl
23 claims
| Drug | Claims |
|---|---|
| Prednisone | 71 |
| Abiraterone Acetate | 62 |
| Xtandi Enzalutamide | 47 |
| Eliquis Apixaban | 43 |
| Levothyroxine Sodium | 41 |
| Gabapentin | 32 |
| Hydroxyurea | 28 |
| Ondansetron Hcl | 23 |
| Inlyta Axitinib | 19 |
| Anastrozole | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Benjamin Solomon, MD fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Benjamin Solomon, MD's 726 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Solomon.
Dr. Ferdinand Addo
MD
Watertown, SD
Dr. Bayan Al Share
MD
Rapid City, SD
Dr. Bipinkumar Amin
MD
Watertown, SD
Dr. Richard Conklin
MD
Aberdeen, SD
Dr. Radowan Elnair
MD
Sioux Falls, SD
Compare Hematology & Oncology 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 South Dakota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology 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 Benjamin Solomon, MD's specialty? ▼
Benjamin Solomon, MD specializes in Hematology & Oncology Physician and practices in Sioux Falls, South Dakota. Credentials: MD.
How much does Benjamin Solomon, MD prescribe under Medicare Part D? ▼
In 2023, Benjamin Solomon, MD wrote 726 Medicare Part D claims totaling $3.3M in drug costs for 146 beneficiaries.
Where is Benjamin Solomon, MD located? ▼
Benjamin Solomon, MD is located at 1000 E. 23RD ST., Sioux Falls, SD, 57105. Phone: (605) 322-6900.
What is Benjamin Solomon, MD's NPI number? ▼
Benjamin Solomon, MD's National Provider Identifier (NPI) is 1912107368, issued on 07/24/2007.
Does Benjamin Solomon, MD prescribe more brand-name or generic drugs? ▼
Benjamin Solomon, MD's prescribing is 38% brand-name and 62% generic drugs by claim count, with $2.9M in brand drug costs.
Does Benjamin Solomon, MD prescribe opioids? ▼
Yes, Benjamin Solomon, MD had 28 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Benjamin Solomon, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Benjamin Solomon, MD's most frequently prescribed drugs include Prednisone, Abiraterone Acetate, Xtandi. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Benjamin Solomon, MD accept Medicare? ▼
Benjamin Solomon, MD appears in CMS Medicare data with 726 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Benjamin Solomon, MD's credentials? ▼
Benjamin Solomon, MD's NPI is 1912107368 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.
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 May 2026.