David Rayan, DO
NPI 1194287870 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Rayan, DO is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1194287870).
Provider details
- NPI number
- 1194287870
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 7435221 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 54 | 26 |
| Rosuvastatin Calcium | 41 | 25 |
| Carvedilol | 31 | 15 |
| Furosemide | 23 | 14 |
| Losartan Potassium | 21 | 11 |
| Apixabanbrand: Eliquis | 20 | 11 |
| Clopidogrel Bisulfatebrand: Clopidogrel |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,271 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
- 2019-04-02
- Last updated
- 2023-05-08
- Certified
- 2023-05-08
Frequently asked questions
- What is David Rayan's NPI number?
- David Rayan's National Provider Identifier (NPI) is 1194287870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Rayan's specialty?
- David Rayan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Rayan located?
- David Rayan's practice location on file with NPPES is 2900 W Oklahoma Ave, Milwaukee, WI 53215-4330.
- What is David Rayan's phone number?
- The practice phone number listed in the NPPES registry for David Rayan is (414) 649-6000.
- Does David Rayan accept Medicare?
- David Rayan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Rayan's NPI active?
- Yes — David Rayan's NPI (1194287870) is active in the NPPES registry as of the last update on 2023-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.