Eric Christoff, M.D.
NPI 1245287317 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Christoff, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1245287317).
Provider details
- NPI number
- 1245287317
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-094098 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Emtricitabine/Tenofov Alafenambrand: Descovy | 178 | 22 |
| Atorvastatin Calcium | 140 | 36 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 127 | 15 |
| Bupropion Hclbrand: Bupropion Xl | 91 | 18 |
| Gabapentin | 85 | 20 |
| Rosuvastatin Calcium | 82 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,301 across 155 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-27
- Last updated
- 2021-12-19
- Certified
- 2021-12-19
Frequently asked questions
- What is Eric Christoff's NPI number?
- Eric Christoff's National Provider Identifier (NPI) is 1245287317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Christoff's specialty?
- Eric Christoff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Christoff located?
- Eric Christoff's practice location on file with NPPES is 6500 N Clark St, Chicago, IL 60626-4097.
- What is Eric Christoff's phone number?
- The practice phone number listed in the NPPES registry for Eric Christoff is (773) 388-1600.
- Does Eric Christoff accept Medicare?
- Eric Christoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Christoff's NPI active?
- Yes — Eric Christoff's NPI (1245287317) is active in the NPPES registry as of the last update on 2021-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.