NPPES file of Aug 9, 2026

Alison Laura Pachynski, MD MPH

Internal Medicine Physician · Redwood City, CA

Alison Laura Pachynski, MD MPH is an internal medicine physician with a practice address in Redwood City, California, and NPI 1013090810, issued on Oct 23, 2006. Check the license (California A87899, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1013090810
Name
Alison Laura Pachynski
Credential
MD MPH
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A87899 CA
Self-reported in NPPES; status is on the state search
Practice location
2710 Middlefield RD, Redwood City, CA 94063
Phone
(650) 364-6010
Enumerated
Oct 23, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(650) 366-4732
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2710 Middlefield RD

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

  1. Sona Aggarwal, MDInternal Medicine Physician1417065228
  2. Marissa Aillaud, M.D.Student in an Organized Health Care Education/Training Program1699090894
  3. Jeanette Aviles, MDInternal Medicine Physician1184772576
  4. Vanessa Breen, NPFamily Nurse Practitioner1497190763
  5. Megan Byrne, MDInternal Medicine Physician1538643903
  6. Erika Choy, DOPediatrics Physician1972965788

Verify Alison Laura Pachynski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A87899
    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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Alison Laura Pachynski among 17,696 internal medicine physician records in California

Alison Laura Pachynski, MD MPH is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

85 internal medicine physician records list a practice address in Redwood City

They are 85 of the 2,795 NPPES records with a practice address in Redwood City, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sona Aggarwal, MDRedwood City, CA 940631417065228
  2. Wilma Arguelles-Gaviola, MDRedwood City, CA 940631740368398
  3. Srinivasa Ashokkumar, M.DRedwood City, CA 940631134126329
  4. Henry Brodkin, MDRedwood City, CA 940631770661324
  5. Betty Ho, MDRedwood City, CA 940631922186568
  6. Khorshed Madan, M.D.Redwood City, CA 940631366464356
  7. Marie President, M.DRedwood City, CA 940631083621379
  8. Rashmi Saini, MDRedwood City, CA 940631144308701

Common questions

What is Alison Laura Pachynski, MD MPH's NPI number?

Alison Laura Pachynski, MD MPH's National Provider Identifier (NPI) is 1013090810, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alison Laura Pachynski, MD MPH located?

The NPPES record lists a practice address at 2710 Middlefield RD, Redwood City, CA, 94063. Phone: (650) 364-6010. Providers update this record themselves, so call before visiting.

How can I verify Alison Laura Pachynski, MD MPH's license?

NPPES lists California license number A87899, 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. 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.