NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1356343552 M.D.
Verify on CMS → Andrejs Strauss, M.D.
Radiation Oncology Physician in Rehoboth Beach, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,141 in Radiation 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
962
Medicare Part D claims · 35 beneficiaries · Radiation Oncology Physician avg: 135
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Andrejs Strauss, M.D. filed 962 Medicare Part D claims in 2024 as a Radiation Oncology Physician in Rehoboth Beach, Delaware, prescribing 98% generic.
- 962
- Part D claims, 2024
- 98%
- generic prescribing
- ≥74th
- 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 Andrejs Strauss, 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 1356343552), first enumerated 06/01/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 962 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1356343552 · Radiation Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1356343552
- ENUM-LEGACY 2005
- TAX-MID 6K Radiation Oncology
- RX-LIGHT 962
- BOOK-THIN 19 in Delaware
- PHOTO-ENUM Kelly Fife, M.D. · 2005
Andrejs Strauss, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
962 ≥ 74th percentile 74% 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
◑
Board-eligible specialty (heuristic, not verified)
Andrejs Strauss, 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 Andrejs Strauss, M.D.?
Quality data not reportedPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
962 7× vs specialty avg
Specialty distribution in Delaware
How Radiation Oncology Physician compares to other specialties among Delaware 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 Radiation 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).
Practice Address
Provider Details
| NPI | 1356343552 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/01/2005 |
Brand vs generic prescribing mix · Generic-heavy
Andrejs Strauss, M.D. - brand share 2.0%
Radiation Oncology Physician average
2% brand-name claims vs 98% generic, on 962 2024 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 2024.
962
Total Claims
$21K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 967.333
- Total Day Supply
- 26,845
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $751
- Generic Drug Cost
- $20K
- Opioid Claims
- 475 (49.4% rate)
Patient Demographics
- Average Patient Age
- 66.7 years
- Avg HCC Risk Score
- 1.23
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Andrejs Strauss, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Oxycodone Hcl
Oxycodone Hcl
240 claims
- Morphine Sulfate Er
Morphine Sulfate Er
104 claims
- Gabapentin 87
Gabapentin
87 claims
- Baclofen 80
Baclofen
80 claims
- Ibuprofen 68
Ibuprofen
68 claims
- Alprazolam 49
Alprazolam
49 claims
- Oxycodone-Acetamin… 47
Oxycodone-Acetaminophen
47 claims
- Tizanidine Hcl 43
Tizanidine Hcl
43 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 240 |
| Morphine Sulfate Er Morphine Sulfate | 104 |
| Gabapentin | 87 |
| Baclofen | 80 |
| Ibuprofen | 68 |
| Alprazolam | 49 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 47 |
| Tizanidine Hcl | 43 |
| Cyclobenzaprine Hcl | 26 |
| Fentanyl | 25 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How Andrejs Strauss, M.D. fits within the Radiation Oncology Physician landscape nationally.
6,141
Radiation Oncology Physician Providers in US
53
States with Radiation Oncology Physician
135
Avg Claims per Provider
Andrejs Strauss, M.D.'s 962 claims are above the specialty average of 135.
Nationwide Radiation Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Strauss, both outside Delaware so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Radiation Oncology Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Strauss.
One of 19 Radiation Oncology Physician providers enrolled in Delaware, 5 are shown here.
Dr. Monica Chelius
MD
Newark, DE
Dr. Lana De Souza Lawrence
M.D.
Newark, DE
Dr. Viroon Donavanik
M.D.
Newark, DE
Dr. Jennifer Hung
M.D.
Rehoboth Beach, DE
Dr. Christopher Koprowski
M.D.
Newark, DE
Compare Radiation Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Andrejs Strauss, M.D.'s specialty? ▼
Andrejs Strauss, M.D. specializes in Radiation Oncology Physician and practices in Rehoboth Beach, Delaware. Credentials: M.D..
How much does Andrejs Strauss, M.D. prescribe under Medicare Part D? ▼
In 2024, Andrejs Strauss, M.D. wrote 962 Medicare Part D claims totaling $21K in drug costs for 35 beneficiaries.
Where is Andrejs Strauss, M.D. located? ▼
Andrejs Strauss, M.D. is located at 18947 JOHN J WILLIAMS HWY, Rehoboth Beach, DE, 19971. Phone: (302) 645-3775.
What is Andrejs Strauss, M.D.'s NPI number? ▼
Andrejs Strauss, M.D.'s National Provider Identifier (NPI) is 1356343552, issued on 06/01/2005.
Does Andrejs Strauss, M.D. prescribe more brand-name or generic drugs? ▼
Andrejs Strauss, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $751 in brand drug costs.
Does Andrejs Strauss, M.D. prescribe opioids? ▼
Yes, Andrejs Strauss, M.D. had 475 opioid claims in 2024 with an opioid prescribing rate of 49.4%.
How many Radiation Oncology Physician providers are there in the US? ▼
There are 6,141 Radiation Oncology Physician providers across 53 states in the US. The average Radiation Oncology Physician provider writes 135 Medicare Part D claims per year.
What drugs does Andrejs Strauss, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Andrejs Strauss, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Morphine Sulfate Er, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrejs Strauss, M.D. accept Medicare? ▼
Andrejs Strauss, M.D. appears in CMS Medicare data with 962 Part D claims and 35 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrejs Strauss, M.D.'s credentials? ▼
Andrejs Strauss, M.D.'s NPI is 1356343552 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.