Stefanie Addington, M.D.
NPI 1639197759 · Internal Medicine Physician · Frisco, TX
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefanie Addington, M.D. is a Internal Medicine Physician provider in Frisco, TX (NPI 1639197759).
Provider details
- NPI number
- 1639197759
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- L8255 (TX)
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
19 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
510 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 | 187 | $117 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 53 | $8 |
| Liver Function Blood Test Panel80076 | 47 | $8 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 46 | $159 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 45 | $16 |
| Hemoglobin A1c Level83036 | 41 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 180 | 46 |
| Semaglutidebrand: Ozempic | 108 | 28 |
| Metformin Hcl | 74 | 24 |
| Glimepiride | 65 | 20 |
| Levothyroxine Sodiumbrand: Synthroid | 61 | 16 |
| Empagliflozinbrand: Jardiance | 60 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$362 across 19 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
- 2006-07-17
- Last updated
- 2023-02-22
- Certified
- 2023-02-22
Frequently asked questions
- What is Stefanie Addington's NPI number?
- Stefanie Addington's National Provider Identifier (NPI) is 1639197759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefanie Addington's specialty?
- Stefanie Addington is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stefanie Addington located?
- Stefanie Addington's practice location on file with NPPES is 8350 Dallas Pkwy Ste 300, Frisco, TX 75034-5076.
- What is Stefanie Addington's phone number?
- The practice phone number listed in the NPPES registry for Stefanie Addington is (972) 468-9999.
- Does Stefanie Addington accept Medicare?
- Stefanie Addington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefanie Addington's NPI active?
- Yes — Stefanie Addington's NPI (1639197759) is active in the NPPES registry as of the last update on 2023-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.