NPPES file of Aug 9, 2026

Traci Ise Iwamoto, M.D.

Obstetrics & Gynecology Physician · San Francisco, CA

Traci Ise Iwamoto, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1841566767, issued on Mar 25, 2012. Check the license 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
1841566767
Name
Traci Ise Iwamoto
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
303019 LA
Self-reported in NPPES; status is on the state search
Practice location
1855 4TH St FL 3, San Francisco, CA 94143
Phone
(415) 353-2566
Enumerated
Mar 25, 2012
Record last updated
Sep 11, 2025
Medicare enrollment
Enrolled (PECOS I20201015002438); may accept Medicare assignment
Medical or professional school
University Of New Mexico School Of Medicine, 2012
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.
Download card Updates feed

Also registered at 1855 4TH St FL 3

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

  1. Sara Abu-Tabikh, M.D.Critical Care Medicine (Anesthesiology) Physician1265810055
  2. Karla Bermudez Wagner, M.D.Maternal & Fetal Medicine Physician1114169810
  3. Chiara Corbetta-Rastelli, MDObstetrics & Gynecology Physician1952862849
  4. Alissa Erogbogbo, MDObstetrics & Gynecology Physician1629234554
  5. Margaret Flesher, CNMAdvanced Practice Midwife1316464720
  6. Megan Lobel, MDObstetrics & Gynecology Physician1972130334

Verify Traci Ise Iwamoto in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

12 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Traci Iwamoto12
  2. Specialty average165

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: $209.06

12 payments; by number, the most common kind was food and beverage; the largest payer was Millicent US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Traci Iwamoto$209.06
  2. Specialty average$1,030.61

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. Regents Univ OF California UcsfSan Francisco, CA

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

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

Other obstetrics & gynecology physician records in California

  1. Ingrid Aalami, MDSan Jose, CA1952376550
  2. Avisa Abaian- Eagar, M.D.Orange, CA1316057755
  3. Derek Abbassi, MDWalnut Creek, CA1841364155
  4. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  5. Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
  6. Nicole Abell, DOVentura, CA1811243603
  7. Zachary AbelsonLos Angeles, CA1689237414
  8. Ray Abinader, M.D.Loma Linda, CA1770901548
  9. Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
  10. Nada Abou-HaibaLos Angeles, CA1134067549

Common questions

What is Traci Ise Iwamoto, M.D.'s NPI number?

Traci Ise Iwamoto, M.D.'s National Provider Identifier (NPI) is 1841566767, issued on Mar 25, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Traci Ise Iwamoto, M.D. located?

The NPPES record lists a practice address at 1855 4TH St FL 3, San Francisco, CA, 94143. Phone: (415) 353-2566. Providers update this record themselves, so call before visiting.

How can I verify Traci Ise Iwamoto, M.D.'s license?

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 Traci Ise Iwamoto, M.D. prescribe under Medicare Part D?

In 2024, Traci Ise Iwamoto, M.D. had 12 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.