Marjan Karegar, M.D.
NPI 1669621884 · Specialist · Columbia, SC
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marjan Karegar, M.D. is a Specialist provider in Columbia, SC (NPI 1669621884).
Provider details
- NPI number
- 1669621884
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 34132 (SC)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
4,280 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 | 1,169 | $125 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 744 | $3 |
| 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 | 742 | $16 |
| Hemoglobin A1c Level83036 | 586 | $9 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 463 | $34 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 919 | 273 |
| Tirzepatidebrand: Mounjaro | 375 | 66 |
| Methimazole | 347 | 96 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 173 | 68 |
| Insulin Lisprobrand: Humalog Kwikpen U-100 | 163 | 56 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 160 | 63 |
| Semaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,715 across 133 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
- 2008-09-11
- Last updated
- 2020-09-18
- Certified
- 2020-09-18
Frequently asked questions
- What is Marjan Karegar's NPI number?
- Marjan Karegar's National Provider Identifier (NPI) is 1669621884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marjan Karegar's specialty?
- Marjan Karegar is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Marjan Karegar located?
- Marjan Karegar's practice location on file with NPPES is 1740 St. Julian Plance, Columbia, SC 29204-2410.
- What is Marjan Karegar's phone number?
- The practice phone number listed in the NPPES registry for Marjan Karegar is (803) 256-3534.
- Does Marjan Karegar accept Medicare?
- Marjan Karegar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marjan Karegar's NPI active?
- Yes — Marjan Karegar's NPI (1669621884) is active in the NPPES registry as of the last update on 2020-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.