Rachael Stillwagon, P.A.
NPI 1437174208 · Allergy & Immunology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachael Stillwagon, P.A. is a Allergy & Immunology Physician provider in Scottsdale, AZ (NPI 1437174208).
Provider details
- NPI number
- 1437174208
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- P.A.
- Sex
- Female
- Sole proprietor
- No
- License
- 2626 (AZ)
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,664 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 2,923 | $3 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 216 | $105 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 161 | $17 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 117 | $51 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 78 | $12 |
| Test to Measure the Level of Nitric Oxide Gas95012 | 44 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 99 | 37 |
| Levocetirizine Dihydrochloride | 84 | 36 |
| Montelukast Sodium | 78 | 30 |
| Prednisone | 52 | 37 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 51 | 26 |
| Dupilumabbrand: Dupixent Syringe | 48 | — |
| Famotidine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,245 across 53 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 (1)
- 7514 E Monterey Way Ste 1Scottsdale, AZ 85251-6900Phone: (480) 949-7377Fax: (480) 949-8339
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2020-06-11
- Certified
- 2020-06-11
Frequently asked questions
- What is Rachael Stillwagon's NPI number?
- Rachael Stillwagon's National Provider Identifier (NPI) is 1437174208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachael Stillwagon's specialty?
- Rachael Stillwagon is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Rachael Stillwagon located?
- Rachael Stillwagon's practice location on file with NPPES is 10200 N 92nd St Ste 130, Scottsdale, AZ 85258-4535.
- What is Rachael Stillwagon's phone number?
- The practice phone number listed in the NPPES registry for Rachael Stillwagon is (480) 614-8011.
- Does Rachael Stillwagon accept Medicare?
- Rachael Stillwagon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachael Stillwagon's NPI active?
- Yes — Rachael Stillwagon's NPI (1437174208) is active in the NPPES registry as of the last update on 2020-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.