Jason Kass, MD, PHD
NPI 1194957589 · Otolaryngology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Kass, MD, PHD is a Otolaryngology Physician provider in Worcester, MA (NPI 1194957589).
Provider details
- NPI number
- 1194957589
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 263693 (MA)
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
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
438 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 120 | $128 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 72 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $92 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 63 | $112 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 42 | $168 |
| Evaluation of Sleep-Disordered Breathing By Examination of Upper Airway Using an Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Fluticasone Propionate | 17 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 15 |
| Oxycodone Hcl | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$910 across 22 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
Additional practice locations (2)
- 101 Cedar StMilford, MA 01757-1101Phone: (508) 634-8164Fax: (508) 634-5064
- 24 Newton StSouthborough, MA 01772-1215Phone: (508) 460-3291Fax: (508) 481-3706
Registry dates
- Enumerated
- 2009-08-18
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Jason Kass's NPI number?
- Jason Kass's National Provider Identifier (NPI) is 1194957589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Kass's specialty?
- Jason Kass is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Kass located?
- Jason Kass's practice location on file with NPPES is 123 Summer St Ste 300, Worcester, MA 01608-1216.
- What is Jason Kass's phone number?
- The practice phone number listed in the NPPES registry for Jason Kass is (508) 368-3103.
- Does Jason Kass accept Medicare?
- Jason Kass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Kass's NPI active?
- Yes — Jason Kass's NPI (1194957589) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.