DR. NATHANAEL DAVID GAY M.D.
NPI 1417214420
Internal Medicine - Hematology & Oncology in Spokane, WA

Active since April 15, 2012PECOS EnrolledAccepts Medicare Assignment
94.91/100
CMS Quality Rating
601 S SHERMAN ST, SPOKANE, WA 99202(509) 228-1000(509) 252-9300 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 6, 2025, Apr 22, 2024, Oct 1, 2020 and 1 more (4 updates tracked since 2018).

About Dr. Nathanael David Gay M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NATHANAEL DAVID GAY M.D. (NPI 1417214420) is an individual hematology & oncology provider in Spokane, Washington, licensed in Washington (MD61511710) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Kootenai Health, and maintains a secondary practice location in Post Falls.

NPPES Registry Identity

NPI1417214420
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. NATHANAEL DAVID GAYCredential: M.D.
Location Address601 S SHERMAN STSpokane, WA 99202-1311
Mailing Address1204 N Vercler RdSpokane Valley, WA 99216-1020 · (509) 228-1000 · Fax (509) 252-9300
Fax(509) 252-9300
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2012
Enumeration DateApril 15, 2012
Last NPPES UpdateOctober 3, 20254 updates tracked since enumeration
NPPES CertifiedOctober 3, 2025
NPI 1417214420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in WA · MD61511710
Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License M14104 (ID)
601 S SHERMAN ST, Spokane, WA 99202

Secondary Practice Location 1

Location 11440 E Mullan AvePost Falls, ID 83854 · Phone (208) 625-4900 · Fax (208) 625-4911

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Nathanael David Gay M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID446495493
PECOS Enrollment IDI20250428003862
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
495 services186 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
311 services244 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
56 services56 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
53 services17 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
43 services41 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
29 services26 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Kootenai Health

Acute Care Hospitals · Coeur D'alene, ID
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number130049
Location2003 Kootenai Health WayCoeur D'alene, ID 83814 · Kootenai County
Emergency services Birthing friendly

Samaritan Hospital

Acute Care Hospitals · Moses Lake, WA
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number500033
Location801 East Wheeler RoadMoses Lake, WA 98837 · Grant County
Emergency services Birthing friendly

Prov Sacred Hrt Med Ctr & Childs Hosp.

Acute Care Hospitals · Spokane, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500054
Location101 West 8th AvenueSpokane, WA 99204 · Spokane County
Emergency services Birthing friendly

Lincoln Hospital

Critical Access Hospitals · Davenport, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501305
Location10 Nichols StreetDavenport, WA 99122 · Lincoln County
Emergency services

Pullman Regional Hospital

Critical Access Hospitals · Pullman, WA
5/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501331
Location835 S Bishop BlvdPullman, WA 99163 · Whitman County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$172.80 typical visit price
range $57.27 – $172.80
Typical copayment $43.20 (range $14.31 – $43.20)
Most-billed visit code 99205
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.91/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Quality87.83
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
2 suppliers17 claims9,549 services$0.37 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Medical Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Internal Medicine (Hematology & Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Dietitian, Registered
601 S SHERMAN ST
SPOKANE, WA 99202
Registered Nurse (Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Internal Medicine (Medical Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Surgery (Surgical Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Internal Medicine (Medical Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202
Surgery (Surgical Oncology)
601 S SHERMAN ST
SPOKANE, WA 99202

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417214420, enumerated as an "individual" on April 15, 2012.

The provider is located at 601 S SHERMAN ST SPOKANE, WA 99202 and the phone number is (509) 228-1000.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.

The provider might be accepting Accepts: Moda Health Plan, Inc., PacificSource Health. Please consult your insurance carrier or call the provider to verify.

Nathanael Gay is affiliated with: KOOTENAI HEALTH, SAMARITAN HOSPITAL, PROV SACRED HRT MED CTR & CHILDS HOSP., LINCOLN HOSPITAL and PULLMAN REGIONAL HOSPITAL.