Abigail Bales, MD
NPI 1013275940 · Internal Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Abigail Bales, MD is a Internal Medicine Physician provider in Madison, WI (NPI 1013275940).
Provider details
- NPI number
- 1013275940
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 61155-20 (WI)
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
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,369 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 610 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 559 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 81 | $61 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 73 | $134 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 35 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 134 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 690 | 173 |
| Omeprazole | 474 | 120 |
| Amlodipine Besylate | 413 | 107 |
| Levothyroxine Sodium | 354 | 88 |
| Lisinopril | 325 | 82 |
| Losartan Potassium | 270 | 68 |
| Hydrochlorothiazide |
Practice location
Mailing address
Additional practice locations (1)
- 1821 S Stoughton RdMadison, WI 53716-2257Phone: (608) 260-6000Fax: (608) 260-6451
Registry dates
- Enumerated
- 2012-04-28
- Last updated
- 2022-02-15
- Certified
- 2022-02-15
Frequently asked questions
- What is Abigail Bales's NPI number?
- Abigail Bales's National Provider Identifier (NPI) is 1013275940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Abigail Bales's specialty?
- Abigail Bales is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Abigail Bales located?
- Abigail Bales's practice location on file with NPPES is 451 Junction Rd, Madison, WI 53717-2656.
- What is Abigail Bales's phone number?
- The practice phone number listed in the NPPES registry for Abigail Bales is (608) 265-1600.
- Does Abigail Bales accept Medicare?
- Abigail Bales is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Abigail Bales's NPI active?
- Yes — Abigail Bales's NPI (1013275940) is active in the NPPES registry as of the last update on 2022-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.