Nathan Asner, DO
NPI 1407506611 · Family Medicine Physician · Rockford, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Asner, DO is a Family Medicine Physician provider in Rockford, IL (NPI 1407506611).
Provider details
- NPI number
- 1407506611
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 036.176248 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 37 | 11 |
| Atorvastatin Calcium | 35 | 14 |
| Pantoprazole Sodium | 30 | — |
| Levothyroxine Sodium | 25 | — |
| Meloxicam | 24 | — |
| Trazodone Hcl | 20 | — |
| Simvastatin | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-29
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Nathan Asner's NPI number?
- Nathan Asner's National Provider Identifier (NPI) is 1407506611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Asner's specialty?
- Nathan Asner is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Asner located?
- Nathan Asner's practice location on file with NPPES is 2404 Charles St, Rockford, IL 61108-1602.
- What is Nathan Asner's phone number?
- The practice phone number listed in the NPPES registry for Nathan Asner is (779) 696-7910.
- Does Nathan Asner accept Medicare?
- Nathan Asner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Asner's NPI active?
- Yes — Nathan Asner's NPI (1407506611) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.