Diana Zamojski, DO
NPI 1861424244 · Family Medicine Physician · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Zamojski, DO is a Family Medicine Physician provider in Oak Lawn, IL (NPI 1861424244).
Provider details
- NPI number
- 1861424244
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 036101342 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,681 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 422 | $130 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 331 | $17 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 233 | $64 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 190 | $25 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 177 | $19 |
| Annual Depression Screening, 5 to 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 407 | 111 |
| Levothyroxine Sodium | 193 | 49 |
| Rosuvastatin Calcium | 157 | 56 |
| Amlodipine Besylate | 148 | 47 |
| Lisinopril | 130 | 40 |
| Pantoprazole Sodium | 126 | 41 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,730 across 90 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
- 2006-07-07
- Last updated
- 2021-12-09
- Certified
- 2021-12-09
Frequently asked questions
- What is Diana Zamojski's NPI number?
- Diana Zamojski's National Provider Identifier (NPI) is 1861424244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Zamojski's specialty?
- Diana Zamojski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Zamojski located?
- Diana Zamojski's practice location on file with NPPES is 4301 W 95th Street, Oak Lawn, IL 60453-2670.
- What is Diana Zamojski's phone number?
- The practice phone number listed in the NPPES registry for Diana Zamojski is (708) 425-5500.
- Does Diana Zamojski accept Medicare?
- Diana Zamojski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Zamojski's NPI active?
- Yes — Diana Zamojski's NPI (1861424244) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.