NPPES file of Aug 9, 2026

Claudia I. Iota-Herbei

Nephrology Physician · Berkeley, CA

Claudia I. Iota-Herbei is a nephrology physician with a practice address in Berkeley, California, and NPI 1548367113, issued on Sep 17, 2006. Check the license (California A85905, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548367113
Name
Claudia I. Iota-Herbei
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A85905 CA
Self-reported in NPPES; status is on the state search
Practice location
2905 Telegraph Ave, Berkeley, CA 94705
Phone
(510) 841-0411
Enumerated
Sep 17, 2006
Record last updated
May 29, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(510) 845-5030
Medicaid ID
00A859050 CA
Medicare enrollment
Enrolled (PECOS I20040423001189); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2905 Telegraph Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael Ajuria, M.D.Nephrology Physician1922425057
  2. Akosua Appea, FNPFamily Nurse Practitioner1669214367
  3. Donald Block, MDNephrology Physician1205933934
  4. Alexis Chettiar, NPNurse Practitioner1164667549
  5. Mario Corona, MDNephrology Physician1679670301
  6. Simarjit Dhaliwal, MDNephrology Physician1255485900

Verify Claudia I. Iota-Herbei in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85905
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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34% fewer Medicare Part D claims than the average nephrology physician in 2024

962 Medicare Part D claims for 132 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 31 claims were for opioids.

  1. Claudia Iota-Herbei962
  2. Specialty average1,465

Most prescribed

  1. Sevelamer Carbonate119 claims
  2. Amlodipine Besylate76 claims
  3. Hydralazine Hcl58 claims
  4. Calcium Acetate56 claims
  5. Furosemide43 claims
  6. Losartan Potassium30 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $418.28

19 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Claudia Iota-Herbei$418.28
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. East Bay Nephrology Medical Group IncVallejo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Claudia I. Iota-Herbei among 1,468 nephrology physician records in California

Claudia I. Iota-Herbei is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1992 · median 2001 among the 1,128 with a school on file
  • Record last updated2008 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Donald Block, MDBerkeley, CA 947051205933934
  2. Mario Corona, MDBerkeley, CA 947051679670301
  3. Robert Doud, MDBerkeley, CA 947051184721821
  4. Malcolm Karlinsky, MDBerkeley, CA 947051609973353
  5. Oliver Khakmahd, MDBerkeley, CA 947051164529830
  6. Terina Miller, MDBerkeley, CA 947051669579348
  7. Ellen Morrissey, MDBerkeley, CA 947051003913781
  8. John Mouratoff, MDBerkeley, CA 947051538266218

Common questions

What is Claudia I. Iota-Herbei's NPI number?

Claudia I. Iota-Herbei's National Provider Identifier (NPI) is 1548367113, issued on Sep 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Claudia I. Iota-Herbei located?

The NPPES record lists a practice address at 2905 Telegraph Ave, Berkeley, CA, 94705. Phone: (510) 841-0411. Providers update this record themselves, so call before visiting.

How can I verify Claudia I. Iota-Herbei's license?

NPPES lists California license number A85905, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Claudia I. Iota-Herbei prescribe under Medicare Part D?

In 2024, Claudia I. Iota-Herbei had 962 Medicare Part D claims for 132 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.