Mark Stevens, M.D.
NPI 1629399001 · Allergy & Immunology (Internal Medicine) Physician · Saint George, UT
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Stevens, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider in Saint George, UT (NPI 1629399001).
Provider details
- NPI number
- 1629399001
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 9334329-1205 (UT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,959 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,782 | $3 |
| Test for Allergy Using Skin Patch95044 | 745 | $4 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 446 | $14 |
| Professional Service for Multiple Injections of Allergen95117 | 273 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 243 | $121 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 170 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 306 | 112 |
| Azelastine Hcl | 236 | 95 |
| Fluticasone Propionate | 178 | 71 |
| Ipratropium Bromide | 134 | 62 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 96 | 57 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 94 | 23 |
| Famotidine | 77 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-19
- Last updated
- 2021-08-19
- Certified
- 2021-08-19
Frequently asked questions
- What is Mark Stevens's NPI number?
- Mark Stevens's National Provider Identifier (NPI) is 1629399001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stevens's specialty?
- Mark Stevens is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stevens located?
- Mark Stevens's practice location on file with NPPES is 544 S 400 E, Saint George, UT 84770-3705.
- What is Mark Stevens's phone number?
- The practice phone number listed in the NPPES registry for Mark Stevens is (435) 688-6288.
- Does Mark Stevens accept Medicare?
- Mark Stevens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Stevens's NPI active?
- Yes — Mark Stevens's NPI (1629399001) is active in the NPPES registry as of the last update on 2021-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.