NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1942272554 MD
Verify on CMS → Robert Sourk, MD
Sleep Medicine (Internal Medicine) Physician in Hutchinson, Kansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 932 in Sleep Medicine (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
180
Medicare Part D claims · 36 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
46%
generic claims · 54% 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
Robert Sourk, MD filed 180 Medicare Part D claims in 2024 as a Sleep Medicine (Internal Medicine) Physician in Hutchinson, Kansas, prescribing 46% generic.
- 180
- Part D claims, 2024
- 46%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- 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 Robert Sourk, MD
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 1942272554), first enumerated 02/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 180 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
5 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1942272554 · Sleep Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1942272554
- ENUM-LEGACY 2006
- TAX-NARROW 932
- RX-LIGHT 180
- BOOK-THIN 8 in Kansas
- PHOTO-ENUM Bruce Tammelin, M.D. · 2006
Robert Sourk, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
180 ≥ 34th percentile 34% 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 certification likely (heuristic, not verified)
Robert Sourk, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 5 hospital affiliations - 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 Robert Sourk, MD?
Quality data not reportedPrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
180 86% vs specialty avg
Specialty distribution in Kansas
How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Kansas 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 Sleep Medicine (Internal 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).
Practice Address
Provider Details
| NPI | 1942272554 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/07/2006 |
Hospital and facility affiliations
Facilities where Robert Sourk, 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.
According to CMS billing records, Robert Sourk, MD is affiliated with 5 Medicare-billing facilities, 1 of which carry a CMS Hospital overall star rating.
Ellsworth County Medical Center
★★☆☆☆ 2/5
Ellsworth, KS
Critical Access Hospitals
CMS CCN: 171327
Ascension Via Christi Hospital Manhattan Inc
Manhattan, KS
Cloud County Health Center Inc
Concordia, KS
Hutchinson Clinic PA Inc
Hutchinson, KS
Salina Regional Health Center Inc
Salina, KS
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Brand-heavy
Robert Sourk, MD - brand share 54.0%
Sleep Medicine (Internal Medicine) Physician average
54% brand-name claims vs 46% generic, on 180 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.
180
Total Claims
$38K
Total Drug Cost
36
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 237.767
- Total Day Supply
- 6,553
- Brand vs Generic
- 54% brand / 46% generic
- Brand Drug Cost
- $32K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Robert Sourk, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Albuterol Sulfate …
Albuterol Sulfate Hfa
29 claims
- Trelegy Ellipta
Trelegy Ellipta
21 claims
- Symbicort
Symbicort
18 claims
- Budesonide
Budesonide
16 claims
- Lisinopril
Lisinopril
13 claims
- Pioglitazone Hcl
Pioglitazone Hcl
13 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 29 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 21 |
| Symbicort Budesonide/Formoterol Fumarate | 18 |
| Budesonide | 16 |
| Lisinopril | 13 |
| Pioglitazone Hcl | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Internal Medicine) Physician in KS →
All providers in Kansas →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Robert Sourk, MD fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
932
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,288
Avg Claims per Provider
Robert Sourk, MD's 180 claims are below the specialty average of 1,288.
Nationwide Sleep Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sourk, both outside Kansas 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 Sleep Medicine (Internal Medicine) Physician Providers in Kansas
Other clinicians with the same primary specialty enrolled in Kansas, drawn from the same CMS NPPES roster as Sourk.
One of 8 Sleep Medicine (Internal Medicine) Physician providers enrolled in Kansas, 5 are shown here.
Dr. Kent Berquist
M.D.
Salina, KS
Dr. Abid Bhat
MD
Shawnee, KS
Dr. Varsha Chiruvella
MD
Kansas City, KS
Dr. David Cocanower
M.D.
Ottawa, KS
Dr. Alan Gonzalez Zapata
M.D.
Topeka, KS
Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Robert Sourk, MD's specialty? ▼
Robert Sourk, MD specializes in Sleep Medicine (Internal Medicine) Physician and practices in Hutchinson, Kansas. Credentials: MD.
How much does Robert Sourk, MD prescribe under Medicare Part D? ▼
In 2024, Robert Sourk, MD wrote 180 Medicare Part D claims totaling $38K in drug costs for 36 beneficiaries.
Where is Robert Sourk, MD located? ▼
Robert Sourk, MD is located at 2101 N WALDRON ST, Hutchinson, KS, 67502. Phone: (620) 669-2500.
What is Robert Sourk, MD's NPI number? ▼
Robert Sourk, MD's National Provider Identifier (NPI) is 1942272554, issued on 02/07/2006.
Does Robert Sourk, MD prescribe more brand-name or generic drugs? ▼
Robert Sourk, MD's prescribing is 54% brand-name and 46% generic drugs by claim count, with $32K in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 932 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,288 Medicare Part D claims per year.
What drugs does Robert Sourk, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Robert Sourk, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Symbicort. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Sourk, MD accept Medicare? ▼
Robert Sourk, MD appears in CMS Medicare data with 180 Part D claims and 36 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Sourk, MD's credentials? ▼
Robert Sourk, MD's NPI is 1942272554 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 (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.