Douglas Kasper, M.D.
NPI 1447414008 · Internal Medicine Physician · Maywood, IL
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Kasper, M.D. is a Internal Medicine Physician provider in Maywood, IL (NPI 1447414008).
Provider details
- NPI number
- 1447414008
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125054048 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
343 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 105 | $48 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 99 | $76 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 55 | $168 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $87 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 24 | $126 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 79 | 11 |
| Vancomycin Hcl | 59 | 15 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 56 | — |
| Cefazolin Sodium | 40 | — |
| Ethambutol Hcl | 38 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 33 | — |
| Dolutegravir/Rilpivirinebrand: Juluca | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-14
- Last updated
- 2008-07-14
Frequently asked questions
- What is Douglas Kasper's NPI number?
- Douglas Kasper's National Provider Identifier (NPI) is 1447414008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Kasper's specialty?
- Douglas Kasper is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Kasper located?
- Douglas Kasper's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153-3328.
- What is Douglas Kasper's phone number?
- The practice phone number listed in the NPPES registry for Douglas Kasper is (312) 520-2293.
- Does Douglas Kasper accept Medicare?
- Douglas Kasper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Kasper's NPI active?
- Yes — Douglas Kasper's NPI (1447414008) is active in the NPPES registry as of the last update on 2008-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.