Alyssa Hummel, MD, MPH
NPI 1669051587 · Hospitalist Physician · Madison, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Hummel, MD, MPH is a Hospitalist Physician provider in Madison, WI (NPI 1669051587).
Provider details
- NPI number
- 1669051587
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
126 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 112 | $73 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $121 |
Typical Medicare-allowed amounts for these services range $73–$121 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 33 | 13 |
| Metformin Hcl | 18 | — |
| Gabapentin | 14 | — |
| Fluticasone Propionate | 12 | — |
| Furosemide | 12 | — |
| Diclofenac Sodium | 11 | — |
| Dulaglutidebrand: Trulicity | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$43 across 2 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)
- 1300 N 12th St Ste 508Phoenix, AZ 85006-2849Phone: (602) 839-3927Fax: (602) 839-4233
Registry dates
- Enumerated
- 2021-04-07
- Last updated
- 2024-12-11
- Certified
- 2024-12-11
Frequently asked questions
- What is Alyssa Hummel's NPI number?
- Alyssa Hummel's National Provider Identifier (NPI) is 1669051587, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Hummel's specialty?
- Alyssa Hummel is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Alyssa Hummel located?
- Alyssa Hummel's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-2849.
- What is Alyssa Hummel's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Hummel is (608) 263-6400.
- Does Alyssa Hummel accept Medicare?
- Alyssa Hummel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Hummel's NPI active?
- Yes — Alyssa Hummel's NPI (1669051587) is active in the NPPES registry as of the last update on 2024-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.