David Isaacson, MD
NPI 1073562179 · Hospitalist Physician · Janesville, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Isaacson, MD is a Hospitalist Physician provider in Janesville, WI (NPI 1073562179).
Provider details
- NPI number
- 1073562179
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1907851 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
777 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 562 | $8 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 149 | $166 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 38 | $7 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 16 | $167 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 | $125 |
Typical Medicare-allowed amounts for these services range $7–$167 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2015-02-05
Frequently asked questions
- What is David Isaacson's NPI number?
- David Isaacson's National Provider Identifier (NPI) is 1073562179, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Isaacson's specialty?
- David Isaacson is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is David Isaacson located?
- David Isaacson's practice location on file with NPPES is 1000 Mineral Point Ave, Janesville, WI 53548-2940.
- What is David Isaacson's phone number?
- The practice phone number listed in the NPPES registry for David Isaacson is (608) 756-6261.
- Does David Isaacson accept Medicare?
- David Isaacson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Isaacson's NPI active?
- Yes — David Isaacson's NPI (1073562179) is active in the NPPES registry as of the last update on 2015-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.