HEATHER RHEA GRIDLEY MD
NPI 1285019612
Pathology - Anatomic Pathology & Clinical Pathology in Spokane Valley, WA

Q: What is Heather Gridley's NPI number?

The NPI number for Heather Gridley is 1285019612. It was assigned to this individual provider in the NPPES registry on July 28, 2015. The provider is also known as Heather Hartin MD.

Q: What is Heather Gridley's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for Heather Gridley was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 28, 2015PECOS EnrolledAccepts Medicare Assignment

15912 E MARIETTA AVE, SPOKANE VALLEY, WA 99216(509) 892-2700 Get Directions Write a Review

NPPES record last updated: June 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 9, 2025, Sep 19, 2025, Mar 6, 2025 and 2 more (5 updates tracked since 2019).

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About Heather Rhea Gridley Md NPPES

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

HEATHER RHEA GRIDLEY MD (NPI 1285019612) is an individual anatomic pathology & clinical pathology provider in Spokane Valley, Washington, licensed in Washington (MD61512839) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Kootenai Health, and is a graduate of University Of Florida College Of Medicine (2015).

NPPES Registry Identity

NPI1285019612

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameHEATHER RHEA GRIDLEYCredential: MD

Location Address15912 E MARIETTA AVESpokane Valley, WA 99216-2552

Mailing AddressPo Box 3405Spokane, WA 99220-3405 · (509) 753-7222 · Fax (509) 342-2743

Phone(509) 892-2700

Sole ProprietorNo

Medical School CMSUniversity Of Florida College Of MedicineGraduated 2015

Enumeration DateJuly 28, 2015

Last NPPES UpdateJune 12, 20265 updates tracked since enumeration

NPPES CertifiedJune 12, 2026

✔ NPI 1285019612 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

Licenses✔ Licensed in WA · MD61512839✔ Licensed in AZ · 63831✔ Licensed in OR · MD218306✔ Licensed in AK · 216589✔ Licensed in NV · 20996✔ Licensed in MT · MEDPHYSCOMLIC131870✔ Licensed in ID · MC-2544

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

15912 E MARIETTA AVE, Spokane Valley, WA 99216

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Other Names 1

Former Name (1)Heather Hartin Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..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

Heather Rhea Gridley Md 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 ID9234530650

PECOS Enrollment IDI20240123003797, I20240212000819, I20240925004281

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 34

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

Flow cytometry technique for dna or cell analysis, each additional marker 88185

Flow cytometry is a technique that helps analyze the physical and chemical characteristics of cells or particles. When an additional marker is used, it aids in identifying specific cell types or stages of disease. This helps in precise diagnosis and treatment planning.

943 services42 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

481 services129 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

438 services268 patients

Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure 88377

Microscopic genetic analysis of tissue is a detailed lab process that examines your cells' genetic material. If more than one stain procedure is needed, it's termed an 'additional multiplex stain procedure'. This helps to highlight different components within your cells, aiding in accurate diagnosis and treatment planning.

216 services59 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

170 services79 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

169 services160 patients

Flow cytometry technique for dna or cell analysis, 16 or more markers 88189

Flow cytometry is a method used to measure and analyze cells. It uses a beam of light to detect up to 16 or more markers on cells, helping to identify their type, function, or abnormalities. This technique aids in diagnosing various health conditions.

151 services143 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

127 services93 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

103 services100 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

102 services62 patients

Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure 88377

98 services25 patients

Evaluation of fine needle aspirate with interpretation and report 88173

This procedure involves using a thin needle to collect a small sample from an abnormal area or lump. The sample is then examined under a microscope to identify any potential issues. A report of the findings is provided for further analysis.

85 services38 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

85 services20 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

79 services49 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

76 services68 patients

Special stained specimen slides to examine tissue, each multiplex procedure 88344

Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.

56 services32 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

50 services24 patients

Flow cytometry technique for dna or cell analysis, 16 or more markers 88189

49 services49 patients

Genetic sequencing localization, initial procedure 88365

Genetic sequencing localization is a process to identify where specific genes are located in your DNA. During the initial procedure, a sample of your cells is collected, usually through a simple swab or blood test. This data is then analyzed to pinpoint the location of certain genes. This can help understand your genetic makeup and potential health risks.

47 services46 patients

Genetic sequencing localization, each additional procedure 88364

Genetic sequencing localization is a process where specific regions of your DNA are identified and studied. If you're having additional procedures, it simply means that more areas of your DNA are being examined. This helps to understand your genetic makeup better and can assist in identifying potential health risks.

44 services42 patients

Flow cytometry technique for dna or cell analysis, first marker 88184

Flow cytometry is a technique used to examine microscopic particles, like cells or DNA. It employs a beam of light to detect and measure physical and chemical characteristics of these particles. The 'first marker' refers to a specific characteristic or feature used to identify a particular cell or particle.

42 services42 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

38 services22 patients

Cell examination of specimen, selective cellular enhancement technique 88112

37 services19 patients

Pathology cytologic examination of specimen during surgery, initial site 88333

A pathology cytologic examination during surgery involves taking a small sample of cells from the initial site of concern. This sample is then examined under a microscope by a pathologist to check for any abnormal or disease-causing cells. This helps guide the ongoing surgical procedure.

36 services34 patients

Microscopic genetic analysis of tumor, manual 88360

36 services25 patients

Special stained specimen slides to examine tissue, initial procedure 88342

31 services26 patients

Bone marrow, smear interpretation 85097

Bone marrow smear interpretation is a procedure where a small sample of your bone marrow is taken and examined under a microscope. This helps doctors identify any abnormal cells or signs of diseases such as anemia, leukemia, or infections. It's a crucial step in diagnosing various blood disorders.

29 services28 patients

Evaluation of fine needle aspirate 88172

Evaluation of fine needle aspirate is a diagnostic procedure where a thin needle is used to collect cells from a lump or mass. This sample is then examined under a microscope to determine the nature of the lump, whether it's benign (non-cancerous) or malignant (cancerous).

28 services18 patients

Bone marrow, smear interpretation 85097

26 services26 patients

Preparation of tissue for examination by removing any calcium present 88311

25 services25 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

17 services16 patients

Genetic sequencing localization, each additional procedure 88364

17 services17 patients

Genetic sequencing localization, initial procedure 88365

17 services17 patients

Pathology examination of tissue using a microscope, high complexity 88309

A high complexity pathology examination involves studying body tissue under a microscope to identify any abnormalities. This intricate process helps in diagnosing various conditions and deciding on the best treatment plan.

11 services11 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

Northwest Specialty Hospital

Acute Care Hospitals · Post Falls, ID

OwnershipProprietary

CMS Certification Number130066

Location1593 East Polston AvenuePost Falls, ID 83854 · Kootenai County

St. Patrick Hospital

Acute Care Hospitals · Missoula, MT

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number270014

Location500 W BroadwayMissoula, MT 59806 · Missoula County

Emergency services Birthing friendly

Columbia Memorial Hospital

Critical Access Hospitals · Astoria, OR

OwnershipProprietary

CMS Certification Number381320

Location2111 Exchange StreetAstoria, OR 97103 · Clatsop 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99216 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

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

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.

Other Providers at the Same Location NPPES 7

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

DR. ISAAC RUBEN GRINDELAND MD

Pathology (Anatomic Pathology & Clinical Pathology)