Donna Nielsen, M.D
NPI 1821007345 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donna Nielsen, M.D is a Family Medicine Physician provider in Chicago, IL (NPI 1821007345).
Provider details
- NPI number
- 1821007345
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- 36105514 (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
19 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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 67 | 32 |
| Hydrochlorothiazide | 44 | 19 |
| Amlodipine Besylate | 40 | 18 |
| Losartan Potassium | 30 | 13 |
| Trazodone Hcl | 26 | 11 |
| Levothyroxine Sodium | 25 | 12 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2023-06-09
- Certified
- 2023-06-09
Frequently asked questions
- What is Donna Nielsen's NPI number?
- Donna Nielsen's National Provider Identifier (NPI) is 1821007345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donna Nielsen's specialty?
- Donna Nielsen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donna Nielsen located?
- Donna Nielsen's practice location on file with NPPES is 3860 W Ogden Ave, Chicago, IL 60623-2460.
- What is Donna Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Donna Nielsen is (872) 588-3000.
- Does Donna Nielsen accept Medicare?
- Donna Nielsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donna Nielsen's NPI active?
- Yes — Donna Nielsen's NPI (1821007345) is active in the NPPES registry as of the last update on 2023-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.