Margaret Ivanov, M.D.
NPI 1326427014 · Nephrology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Ivanov, M.D. is a Nephrology Physician provider in San Diego, CA (NPI 1326427014).
Provider details
- NPI number
- 1326427014
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A156352 (CA)
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
474 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 165 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $111 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 98 | $297 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 41 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 26 | $80 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nifedipinebrand: Nifedipine Er | 55 | 19 |
| Empagliflozinbrand: Jardiance | 54 | 12 |
| Amlodipine Besylate | 42 | 14 |
| Losartan Potassium | 34 | 15 |
| Furosemide | 30 | 12 |
| Sevelamer Carbonate | 28 | — |
| Chlorthalidone | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 10 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
Additional practice locations (2)
- 4168 Front St Fl 2San Diego, CA 92103Phone: (619) 543-6248
- 833 Chestnut StSuite 220Philadelphia, PA 19107-4414Phone: (215) 955-8465Fax: (215) 955-2516
Registry dates
- Enumerated
- 2015-05-27
- Last updated
- 2020-08-07
- Certified
- 2020-08-07
Frequently asked questions
- What is Margaret Ivanov's NPI number?
- Margaret Ivanov's National Provider Identifier (NPI) is 1326427014, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Ivanov's specialty?
- Margaret Ivanov is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Ivanov located?
- Margaret Ivanov's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Margaret Ivanov's phone number?
- The practice phone number listed in the NPPES registry for Margaret Ivanov is (800) 926-8273.
- Does Margaret Ivanov accept Medicare?
- Margaret Ivanov is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Ivanov's NPI active?
- Yes — Margaret Ivanov's NPI (1326427014) is active in the NPPES registry as of the last update on 2020-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.