NPPES file of Aug 9, 2026

Heidi Knickerbocker, MD

Obstetrics & Gynecology Physician · Seattle, WA

Heidi Knickerbocker, MD is an obstetrics & gynecology physician with a practice address in Seattle, Washington, and NPI 1700945037, issued on Dec 6, 2006. Check the license (Washington MD00028437, as entered in NPPES) on the Washington Medical Commission; 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
1700945037
Name
Heidi Knickerbocker
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
MD00028437 WA
Self-reported in NPPES; status is on the state search
Practice location
1801 NW Market St, Seattle, WA 98107
Phone
(206) 782-9335
Enumerated
Dec 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(206) 781-8713
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 1801 NW Market St

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

  1. Kelly Adsero, PA-CPhysician Assistant1881872463
  2. Audrey Allard, CNMAdvanced Practice Midwife1366674632
  3. Craig Anderson, D.D.S.General Practice Dentistry1457569279
  4. David Aoyama, MDInternal Medicine Physician1952384711
  5. John Bagley, LMPMassage Therapist1235308651
  6. James Ballo, M.D.Urology Physician1508878570

Verify Heidi Knickerbocker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00028437
    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 Washington 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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Heidi Knickerbocker among 1,038 obstetrics & gynecology physician records in Washington

Heidi Knickerbocker, MD is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 68% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 52% newer
  • In a Medicare fileNo · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Washington

There are 1,038 obstetrics & gynecology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Rebecca Dehority, MDSeattle, WA 981071134654577
  2. Romina Dunnam, DOSeattle, WA 981071780704023
  3. Teresa Goepfert, D. O.Seattle, WA 981071225354152
  4. Leslie Miller, M.D.Seattle, WA 981071932289931
  5. Ashwini Pandit, MDSeattle, WA 981071306086210
  6. Clara Savage, MDSeattle, WA 981071467748947
  7. Stephen Slack, M.D.Seattle, WA 981071619080835
  8. Cynthia White, MDSeattle, WA 981071720146269

Common questions

What is Heidi Knickerbocker, MD's NPI number?

Heidi Knickerbocker, MD's National Provider Identifier (NPI) is 1700945037, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heidi Knickerbocker, MD located?

The NPPES record lists a practice address at 1801 NW Market St, Seattle, WA, 98107. Phone: (206) 782-9335. Providers update this record themselves, so call before visiting.

How can I verify Heidi Knickerbocker, MD's license?

NPPES lists Washington license number MD00028437, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. 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.