Nicholas Maxwell Mark, M.D.
Critical Care Medicine (Internal Medicine) Physician · Seattle, WA
Nicholas Maxwell Mark, M.D. is a critical care medicine (internal medicine) physician with a practice address in Seattle, Washington, and NPI 1023317757, issued on Mar 21, 2011. Check the license (Washington MD60481597, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nicholas Maxwell Mark
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- MD60481597 WA
Self-reported in NPPES; status is on the state search - Practice location
- 925 Seneca St, Seattle, WA 98101
- Phone
- (206) 223-6600
- Enumerated
- Mar 21, 2011
- Record last updated
- May 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151007000390); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 133 in Washington → Look up another NPI →
Also registered at 925 Seneca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Abe, MDInternal Medicine Physician1346090875
- Katherine Adler, MDInternal Medicine Physician1841418886
- Sanjhavi AgarwalStudent in an Organized Health Care Education/Training Program1902410053
- Jason Agtarap, MDStudent in an Organized Health Care Education/Training Program1194576181
- Shani AharonStudent in an Organized Health Care Education/Training Program1316526650
- Mohammad Ahmed, DOHospitalist Physician1063819381
Verify Nicholas Maxwell Mark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60481597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $525.00
1 payment: consulting fee; the largest payer was Fujifilm Sonosite, Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Swedish Health ServicesSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Maxwell Mark among 133 critical care medicine (internal medicine) physician records in Washington
Nicholas Maxwell Mark, M.D. is one of 133 critical care medicine (internal medicine) physician records with a practice address in Washington. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 36% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2011 · median 2009 among the 104 with a school on file
- Record last updated2020 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Washington
There are 133 critical care medicine (internal medicine) physician records in Washington.
All 133 in Washington → Every provider in Seattle → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Mohammed Alhyraba, MDSeattle, WA 981011578686697
- David Au, MDSeattle, WA 981011477646123
- Subashini Daniel, MDSeattle, WA 981011831352608
- Christopher Do, M.D.Seattle, WA 981011104271907
- Aneal Gadgil, MDSeattle, WA 981011992747646
- Srdjan Gajic, MDSeattle, WA 981011689036568
- Ashwin Gopalan, MDSeattle, WA 981011902242605
- Vinay Gupta, MDSeattle, WA 981011003105917
Common questions
What is Nicholas Maxwell Mark, M.D.'s NPI number?
Nicholas Maxwell Mark, M.D.'s National Provider Identifier (NPI) is 1023317757, issued on Mar 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Maxwell Mark, M.D. located?
The NPPES record lists a practice address at 925 Seneca St, Seattle, WA, 98101. Phone: (206) 223-6600. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Maxwell Mark, M.D.'s license?
NPPES lists Washington license number MD60481597, 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. 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.