NPPES file of Aug 9, 2026

Christopher Andrew Gross, MD

Psychiatry Physician · Seattle, WA

Christopher Andrew Gross, MD is a psychiatry physician with a practice address in Seattle, Washington, and NPI 1336251305, issued on Aug 31, 2006. Check the license (Washington MD00045621, as entered in NPPES) on the Washington Medical Commission; 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
1336251305
Name
Christopher Andrew Gross
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
MD00045621 WA
Self-reported in NPPES; status is on the state search
Practice location
5300 Tallman Ave NW, Seattle, WA 98107
Phone
(206) 320-2230
Enumerated
Aug 31, 2006
Record last updated
Jun 27, 2025
Medicaid ID
1036824 WA
Medicare enrollment
Enrolled (PECOS I20080207000503); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2001
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 5300 Tallman Ave NW

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

  1. Kelvyn Abramowitz, MDAnesthesiology Physician1437114576
  2. Inna Andrews, MDHospitalist Physician1548498157
  3. Hend Barry, PHARMD, BCPSPharmacotherapy Pharmacist1073175543
  4. Kathryn Beck, MDAnesthesiology Physician1306825633
  5. Ronni Berger, RNRegistered Nurse1437203932
  6. Skand Bhatt, MDHospitalist Physician1669620498

Verify Christopher Andrew Gross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00045621
    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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58% more Medicare Part D claims than the average psychiatry physician in 2024

1,582 Medicare Part D claims for 78 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Christopher Gross1,582
  2. Specialty average1,000

Most prescribed

  1. Olanzapine168 claims
  2. Haloperidol132 claims
  3. Benztropine Mesylate117 claims
  4. Invega Sustenna109 claims
  5. Buprenorphine-Naloxone98 claims
  6. Risperidone66 claims

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.

Bills Medicare through one group practice

  1. Swedish Health ServicesSeattle, WA

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

Christopher Andrew Gross among 1,195 psychiatry physician records in Washington

Christopher Andrew Gross, MD is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 57% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2001 · median 2007 among the 462 with a school on file
  • Record last updated2025 · 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 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

485 psychiatry physician records list a practice address in Seattle

They are 485 of the 41,956 NPPES records with a practice address in Seattle, and 1,195 psychiatry physician records in Washington.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Steven Chao, M.D.Seattle, WA 981071780727768
  2. Jay Innes, MDSeattle, WA 981071811071533
  3. Jacob Markovitz, M.D.Seattle, WA 981071134485147
  4. Steven Mitchell, MDSeattle, WA 981071821265091
  5. Shereen Morse, M.D, MPHSeattle, WA 981071538177985
  6. Mark Newman, M.D.Seattle, WA 981071093942922
  7. Shoshanna Press, M.D.Seattle, WA 981071780893412
  8. Janet Solan, M.D.Seattle, WA 981071629126099

Common questions

What is Christopher Andrew Gross, MD's NPI number?

Christopher Andrew Gross, MD's National Provider Identifier (NPI) is 1336251305, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Andrew Gross, MD located?

The NPPES record lists a practice address at 5300 Tallman Ave NW, Seattle, WA, 98107. Phone: (206) 320-2230. Providers update this record themselves, so call before visiting.

How can I verify Christopher Andrew Gross, MD's license?

NPPES lists Washington license number MD00045621, 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.

How much does Christopher Andrew Gross, MD prescribe under Medicare Part D?

In 2024, Christopher Andrew Gross, MD had 1,582 Medicare Part D claims for 78 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.