Maxfield Flynn, M.D.
NPI 1770716185 · Endocrinology, Diabetes & Metabolism Physician · Madison, WI
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maxfield Flynn, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Madison, WI (NPI 1770716185).
Provider details
- NPI number
- 1770716185
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 62994 (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
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
258 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 | 69 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 43 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 38 | $88 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 33 | $66 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $61 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
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 |
|---|---|---|
| Levothyroxine Sodium | 177 | 52 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 50 | 12 |
| Methimazole | 47 | 12 |
| Semaglutidebrand: Ozempic | 34 | — |
| Levothyroxine Sodiumbrand: Synthroid | 30 | — |
| Metformin Hcl | 27 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-09-01
- Last updated
- 2021-02-02
- Certified
- 2021-02-02
Frequently asked questions
- What is Maxfield Flynn's NPI number?
- Maxfield Flynn's National Provider Identifier (NPI) is 1770716185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maxfield Flynn's specialty?
- Maxfield Flynn is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Maxfield Flynn located?
- Maxfield Flynn's practice location on file with NPPES is 451 Junction Rd, Madison, WI 53717-2656.
- What is Maxfield Flynn's phone number?
- The practice phone number listed in the NPPES registry for Maxfield Flynn is (608) 263-5010.
- Does Maxfield Flynn accept Medicare?
- Maxfield Flynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maxfield Flynn's NPI active?
- Yes — Maxfield Flynn's NPI (1770716185) is active in the NPPES registry as of the last update on 2021-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.