DR. GARY DOUGLAS GRIDLEY (M.D.) – Anesthesiology Physician, NPI 1336120260

DR. GARY DOUGLAS GRIDLEY (M.D.) is a healthcare provider. based in Burien, Washington. specializing in ANESTHESIOLOGY. They hold the professional credentials M.D.. They hold a License No. MD00030603 (WA). The NPI Number for DR. GARY DOUGLAS GRIDLEY (M.D.) is 1336120260

Main info

Male
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. GARY DOUGLAS GRIDLEY (M.D.)
NPI
1336120260
Phone
(206) 244-1212
Address
16251 SYLVESTER RD SW
Enumeration Date
8 November 2005
Last Update Date
18 October 2022

Doctor Profile

Medical School Name
UNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Secondary Phone
9286341331
Graduation Year
1990 (36 years ago)
PAC ID
8921095936
Group Practice PAC ID
3577473362
Professional Enrollment ID
I20220923001457
Address ID
AZ863264158CO269XXLNXX404
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness75
Years active:20State licenses:2Digital endpointsOther names

1,514 ANESTHESIOLOGY in WA

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Provider Addresses for DR. GARY DOUGLAS GRIDLEY (M.D.)

  • St. Anne Hospital, 16251, Sylvester Road Southwest, Five Corners, Burien, King County, Washington, 98166, United States

    BURIEN, WA 981663017

    Phone: (206) 244-1212

    Fax: (206) 244-1223

    Type: Location

  • PO BOX 48159

    BURIEN, WA 981480159

    Phone: (206) 244-1212

    Fax: (206) 244-1223

    Type: Mailing

  • 269 S CANDY LN

    COTTONWOOD, AZ 863264158

    Phone: (928) 639-6150

    Fax: (928) 639-6561

    Type: Location

  • 1200 N BEAVER ST

    PAYER CREDENTIALING

    FLAGSTAFF, AZ 860013118

    Phone: (928) 213-6235

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2022-09-23

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040429001149IAnesthesiologyWATBD
I20220923001457IAnesthesiologyAZTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
00811Anesthesia for other procedure on large bowel using an endoscope4343$0
00812Anesthesia for exam of colon using an endoscope2626$0
00731Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope2525$0
00840Anesthesia for other procedure on lower abdomen1616$0
00790Anesthesia for other procedure on upper abdomen1414$0
View full utilization report →

Insurance plans in this area (ZIP 98166)

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Provider's Procedures

DR. GARY DOUGLAS GRIDLEY (M.D.) performs procedures in ANESTHESIOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ANESTHESIOLOGYWA00142Anesthesia for lens surgery2120
ANESTHESIOLOGYWA01402Anesthesia for open or endoscopic total knee joint replacement1111

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3577473362View full group profile
NameSpecialtyState
H O S P I T A L I S TAZ
Physician AssistantCA
H O S P I T A L I S TAZ
Certified Registered Nurse Anesthetist (Crna)AZ
Physician AssistantAZ
Nurse PractitionerAZ
Physician AssistantAZ
A N E S T H E S I O L O G YNV
Family PracticeAZ
Physician AssistantCA

Reviews

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Frequently asked questions

Where can patients find DR. GARY DOUGLAS GRIDLEY (M.D.)'s NPI?
You can confirm DR. GARY DOUGLAS GRIDLEY (M.D.) with NPI 1336120260; it appears in the national provider directory.
Is DR. GARY DOUGLAS GRIDLEY (M.D.) currently active in the NPI registry?
CMS-published data lists DR. GARY DOUGLAS GRIDLEY (M.D.) as an active registrant.
Can you summarize DR. GARY DOUGLAS GRIDLEY (M.D.)'s specialty in plain language?
Clinically, the directory lists DR. GARY DOUGLAS GRIDLEY (M.D.) with Anesthesiology Physician. Clinical services aligned with this taxonomy classification.
Where does public data place DR. GARY DOUGLAS GRIDLEY (M.D.)?
The snapshot lists Burien, Washington for DR. GARY DOUGLAS GRIDLEY (M.D.); download NPPES for the complete set.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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