Deborah Geismar, M.D.
NPI 1669558037 · Family Medicine Physician · Park Ridge, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deborah Geismar, M.D. is a Family Medicine Physician provider in Park Ridge, IL (NPI 1669558037).
Provider details
- NPI number
- 1669558037
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036073437 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 75 | — |
| Atorvastatin Calcium | 60 | 12 |
| Levothyroxine Sodium | 57 | — |
| Metoprolol Succinate | 56 | — |
| Divalproex Sodium | 55 | — |
| Apixabanbrand: Eliquis | 52 | — |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-28
- Last updated
- 2022-06-27
- Certified
- 2022-06-27
Frequently asked questions
- What is Deborah Geismar's NPI number?
- Deborah Geismar's National Provider Identifier (NPI) is 1669558037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Geismar's specialty?
- Deborah Geismar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Deborah Geismar located?
- Deborah Geismar's practice location on file with NPPES is 10 N Cumberland Ave, Park Ridge, IL 60068-3215.
- What is Deborah Geismar's phone number?
- The practice phone number listed in the NPPES registry for Deborah Geismar is (847) 825-0300.
- Does Deborah Geismar accept Medicare?
- Deborah Geismar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deborah Geismar's NPI active?
- Yes — Deborah Geismar's NPI (1669558037) is active in the NPPES registry as of the last update on 2022-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.