Katherine Anne Gregersen, D.O.
Pediatric Critical Care Medicine Physician · Tacoma, WA
Katherine Anne Gregersen, D.O. is a pediatric critical care medicine physician with a practice address in Tacoma, Washington, and NPI 1689993206, issued on May 21, 2010. Check the license (Washington OP61157194, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Katherine Anne Gregersen
- Credential
- D.O.
- Primary taxonomy
- Pediatric Critical Care Medicine Physician 2080P0203X
- License numbers
- OP61157194 WA
036133046 IL
Self-reported in NPPES; status is on the state search - Practice location
- 317 Martin Luther King JR Way, Tacoma, WA 98405
- Phone
- (253) 403-1434
- Enumerated
- May 21, 2010
- Record last updated
- Oct 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatric critical care medicine physician records → All 77 in Washington → Look up another NPI →
Also registered at 317 Martin Luther King JR Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Ahmed, M.D.Pediatric Emergency Medicine (Emergency Medicine) Physician1639372857
- Sohee AhnFamily Nurse Practitioner1487468526
- Kathryn Bailey, MDHospitalist Physician1982066189
- Rachel Barrett, RD, CDRegistered Dietitian1598381709
- William Bergstrom, LICSWClinical Social Worker1417724113
- Jeffrey Blake, MDPediatrics Physician1093734451
Verify Katherine Anne Gregersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61157194Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Katherine Anne Gregersen among 77 pediatric critical care medicine physician records in Washington
Katherine Anne Gregersen, D.O. is one of 77 pediatric critical care medicine physician records with a practice address in Washington. 29% 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 2010, is newer than 64% of them.
- NPI issued2010 · 64% of these records are older, 32% newer
- In a Medicare fileNo · 29% of these records are
- In the CMS Doctors and Clinicians fileNo · 22% of these records are
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Critical Care Medicine Physician providers in Washington
There are 77 pediatric critical care medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 77 in Washington → Every provider in Tacoma → Pediatric Critical Care Medicine Physician nationwide →
The 8 pediatric critical care medicine physician records with the nearest ZIP codes
- Iain Asplin, MD, PHDTacoma, WA 984051326059056
- Alan Gatward, M.D.Tacoma, WA 984051437356003
- Hatai Kraushaar, M.D.Tacoma, WA 984051740556976
- Liliana Lupu, MDTacoma, WA 984051831140029
- Martha McCravey, MDTacoma, WA 984051689637563
- Melinda Coro, MDTacoma, WA 984311922275122
- William HaymanTacoma, WA 984311811371263
- Danielle Levy, MDTacoma, WA 984311164914438
Common questions
What is Katherine Anne Gregersen, D.O.'s NPI number?
Katherine Anne Gregersen, D.O.'s National Provider Identifier (NPI) is 1689993206, issued on May 21, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Anne Gregersen, D.O. located?
The NPPES record lists a practice address at 317 Martin Luther King JR Way, Tacoma, WA, 98405. Phone: (253) 403-1434. Providers update this record themselves, so call before visiting.
How can I verify Katherine Anne Gregersen, D.O.'s license?
NPPES lists Washington license number OP61157194, 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.