Ronald Kass, MD
NPI 1043215270 · Sleep Medicine (Internal Medicine) Physician · Stockton, CA
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Kass, MD is a Sleep Medicine (Internal Medicine) Physician provider in Stockton, CA (NPI 1043215270).
Provider details
- NPI number
- 1043215270
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C42006 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,398 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 904 | $92 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older)95811 | 146 | $667 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 129 | $168 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 128 | $129 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 91 | $624 |
Typical Medicare-allowed amounts for these services range $92–$667 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 53 | 15 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 49 | — |
| Fluticasone Propionate | 44 | 19 |
| Clonazepam | 39 | — |
| Trazodone Hcl | 35 | — |
| Zolpidem Tartrate | 32 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$988 across 31 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-15
- Last updated
- 2022-12-07
- Certified
- 2022-12-07
Frequently asked questions
- What is Ronald Kass's NPI number?
- Ronald Kass's National Provider Identifier (NPI) is 1043215270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Kass's specialty?
- Ronald Kass is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Kass located?
- Ronald Kass's practice location on file with NPPES is 1801 E March Ln Ste C310, Stockton, CA 95210-6683.
- What is Ronald Kass's phone number?
- The practice phone number listed in the NPPES registry for Ronald Kass is (209) 465-5731.
- Does Ronald Kass accept Medicare?
- Ronald Kass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Kass's NPI active?
- Yes — Ronald Kass's NPI (1043215270) is active in the NPPES registry as of the last update on 2022-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.