Jason Gass, D.O.
NPI 1700224201 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Gass, D.O. is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1700224201).
Provider details
- NPI number
- 1700224201
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- DO-04881 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
761 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 480 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 194 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $87 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $107 |
Typical Medicare-allowed amounts for these services range $75–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ceftriaxone Sodiumbrand: Ceftriaxone | 78 | 18 |
| Doxycycline Hyclate | 77 | 20 |
| Vancomycin Hcl | 56 | — |
| Cefadroxil | 53 | 14 |
| Azithromycin | 52 | — |
| Tobramycin Sulfate | 48 | — |
| Methenamine Hippurate | 45 | 11 |
| Cephalexin | 40 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$320 across 17 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
- 2013-06-06
- Last updated
- 2018-09-04
Frequently asked questions
- What is Jason Gass's NPI number?
- Jason Gass's National Provider Identifier (NPI) is 1700224201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Gass's specialty?
- Jason Gass is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Gass located?
- Jason Gass's practice location on file with NPPES is 621 S New Ballas Rd Ste 7018b, Saint Louis, MO 63141.
- What is Jason Gass's phone number?
- The practice phone number listed in the NPPES registry for Jason Gass is (314) 251-4949.
- Does Jason Gass accept Medicare?
- Jason Gass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Gass's NPI active?
- Yes — Jason Gass's NPI (1700224201) is active in the NPPES registry as of the last update on 2018-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.