Elizabeth Trowbridge, MD
NPI 1962463323 · Internal Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Trowbridge, MD is a Internal Medicine Physician provider in Madison, WI (NPI 1962463323).
Provider details
- NPI number
- 1962463323
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 34023 (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
20 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
401 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 | 147 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 91 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $85 |
Typical Medicare-allowed amounts for these services range $9–$120 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 256 | 57 |
| Omeprazole | 136 | 32 |
| Levothyroxine Sodium | 128 | 32 |
| Lisinopril | 122 | 31 |
| Apixabanbrand: Eliquis | 93 | 19 |
| Amlodipine Besylate | 92 | 26 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-28
- Last updated
- 2026-05-13
- Certified
- 2026-05-13
Frequently asked questions
- What is Elizabeth Trowbridge's NPI number?
- Elizabeth Trowbridge's National Provider Identifier (NPI) is 1962463323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Trowbridge's specialty?
- Elizabeth Trowbridge is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Trowbridge located?
- Elizabeth Trowbridge's practice location on file with NPPES is 505 N Gammon Rd, Madison, WI 53717-1208.
- What is Elizabeth Trowbridge's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Trowbridge is (608) 833-8323.
- Does Elizabeth Trowbridge accept Medicare?
- Elizabeth Trowbridge is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Trowbridge's NPI active?
- Yes — Elizabeth Trowbridge's NPI (1962463323) is active in the NPPES registry as of the last update on 2026-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.