NPPES file of Aug 9, 2026

Alexandra Kristin Klein Bor, MD

Anesthesiology Physician · Palo Alto, CA

Alexandra Kristin Klein Bor, MD is an anesthesiology physician with a practice address in Palo Alto, California, and NPI 1669935045, issued on Apr 11, 2019. Check the license (California A182439, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669935045
Name
Alexandra Kristin Klein Bor
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A182439 CA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Apr 11, 2019
Record last updated
May 19, 2026
Medicare enrollment
Enrolled (PECOS I20240820001879); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2019
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 725 Welch RD

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

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Alexandra Kristin Klein Bor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A182439
    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

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

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2 hospitals and group practices

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
  2. Lpch Medical Group Div OF LucilePalo Alto, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Alexandra Kristin Klein Bor among 7,571 anesthesiology physician records in California

Alexandra Kristin Klein Bor, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2019 · median 2006 among the 4,868 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

111 anesthesiology physician records list a practice address in Palo Alto

They are 111 of the 7,617 NPPES records with a practice address in Palo Alto, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. David Berger, MDPalo Alto, CA 943041598715922
  2. Kevin Fish, MDPalo Alto, CA 943041316963960
  3. Margaret Fish, M.B. CH.B.Palo Alto, CA 943041265452700
  4. Natasha Funck, M.D.Palo Alto, CA 943041245251123
  5. David Gaba, M.D.Palo Alto, CA 943041639274798
  6. Thomas Harrison, MDPalo Alto, CA 943041902994965
  7. Steven Howard, M.D.Palo Alto, CA 943041518986587
  8. Komal Kamra, MDPalo Alto, CA 943041124045927

Common questions

What is Alexandra Kristin Klein Bor, MD's NPI number?

Alexandra Kristin Klein Bor, MD's National Provider Identifier (NPI) is 1669935045, issued on Apr 11, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexandra Kristin Klein Bor, MD located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Alexandra Kristin Klein Bor, MD's license?

NPPES lists California license number A182439, 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.

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.