Ronald Schreiber, MD
NPI 1588658595 · Geriatric Medicine (Internal Medicine) Physician · Appleton, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Schreiber, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Appleton, WI (NPI 1588658595).
Provider details
- NPI number
- 1588658595
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 30497 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
365 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 144 | $100 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 84 | $124 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 54 | $69 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 36 | $170 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 27 | $37 |
| Initial Nursing Facility Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 156 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 735 | 69 |
| Apixabanbrand: Eliquis | 643 | 61 |
| Furosemide | 614 | 87 |
| Atorvastatin Calcium | 596 | 97 |
| Sertraline Hcl | 519 | 58 |
| Lisinopril | 346 | 49 |
| Memantine Hcl | 268 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-06
- Last updated
- 2013-02-20
Frequently asked questions
- What is Ronald Schreiber's NPI number?
- Ronald Schreiber's National Provider Identifier (NPI) is 1588658595, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Schreiber's specialty?
- Ronald Schreiber is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Schreiber located?
- Ronald Schreiber's practice location on file with NPPES is 2600 S Heritage Woods Dr, Appleton, WI 54915-1408.
- What is Ronald Schreiber's phone number?
- The practice phone number listed in the NPPES registry for Ronald Schreiber is (920) 225-7875.
- Does Ronald Schreiber accept Medicare?
- Ronald Schreiber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Schreiber's NPI active?
- Yes — Ronald Schreiber's NPI (1588658595) is active in the NPPES registry as of the last update on 2013-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.