Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WALTER BLAKE GRIBBEN MD
NPI 1619296795
Internal Medicine - Pulmonary Disease in Visalia, CA

Q: What is Walter Gribben's NPI number?

The NPI number for Walter Gribben is 1619296795. It was assigned to this individual provider in the NPPES registry on May 27, 2010.

Q: What is Walter Gribben's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Walter Gribben was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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 May 27, 2010PECOS Enrolled

89.5/100

CMS Quality Rating

202 W WILLOW AVE STE 202, VISALIA, CA 93291(559) 624-6580(559) 735-3085 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 28, 2021, May 1, 2018, Nov 14, 2016 and 1 more (4 updates tracked since 2015).

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About Dr. Walter Blake Gribben Md NPPES

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

DR. WALTER BLAKE GRIBBEN MD (NPI 1619296795) is an individual pulmonary disease provider in Visalia, California, licensed in California (C155367) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, maintains a secondary practice location in Tulare, and is a graduate of University Of Alabama School Of Medicine (2010).

NPPES Registry Identity

NPI1619296795

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. WALTER BLAKE GRIBBENCredential: MD

Location Address202 W WILLOW AVE STE 202Visalia, CA 93291-6238

Mailing Address1525 E Noble Ave # 1029Visalia, CA 93292-3043 · (559) 624-6580 · Fax (559) 735-3085

Phone(559) 624-6580

Fax(559) 735-3085

Sole ProprietorNo

Medical School CMSUniversity Of Alabama School Of MedicineGraduated 2010

Enumeration DateMay 27, 2010

Last NPPES UpdateOctober 20, 20264 updates tracked since enumeration

NPPES CertifiedOctober 20, 2026

✔ NPI 1619296795 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in CA · C155367

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

202 W WILLOW AVE STE 202, Visalia, CA 93291

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Secondary Practice Location 1

Location 11000 N Mooney BlvdTulare, CA 93274-2417 · Phone (559) 685-7100 · Fax (559) 624-6590

Other Identifiers 2

Medicaid268374AL

MedicaidENROLLEDIL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Walter Blake Gribben 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 ID7719103647

PECOS Enrollment IDI20210615001445

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.

Medicare Billing Reassignments

Medicare enrollment records show Walter Gribben reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kaweah Delta Health Care District

Same address

Multi-Specialty

202 W WILLOW AVE STE 202
Visalia, CA 93291

Reassigned Medicare billing, California enrollment
184 clinicians in this Medicare group

NPI 1578081915 (559) 624-2739

Inpatient Specialists Of California, PC

189 mi

Internal Medicine

2101 N WATERMAN AVE
San Bernardino, CA 92404

Reassigned Medicare billing, California enrollment
1,216 clinicians in this Medicare group

NPI 1952792475 (615) 377-5658

Uc Regents

192 mi

Allergy & Immunology

101 THE CITY DR S
Orange, CA 92868

Reassigned Medicare billing, California enrollment
525 clinicians in this Medicare group

NPI 1003864174 (714) 456-8068

Montgomery Pulmonary Consultants, P.A.

1,898 mi

Pulmonary Disease

1440 NARROW LANE PKWY
Montgomery, AL 36111

Reassigned Medicare billing, Alabama enrollment
Medicare enrollment name: Montgomery Pulmonary Consultants, PA
15 clinicians in this Medicare group

NPI 1508829193 (334) 281-4140

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 18

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.

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.

418 services154 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

318 services110 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.

266 services175 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

117 services111 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

114 services109 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

114 services109 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

71 services65 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

56 services56 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

46 services46 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

25 services22 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

24 services22 patients

Aspiration of initial secretion of lung airway using an endoscope 31645

This procedure involves using a thin, flexible tube called an endoscope to collect initial secretions from your lung airway. This helps doctors diagnose and treat respiratory conditions. It's a safe, minimally invasive procedure.

19 services18 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

18 services18 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

13 services11 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

12 services12 patients

Test to determine lung volumes using gas dilution or washout 94727

12 services12 patients

Test to examine how well the lungs exchange gases 94729

12 services12 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93291 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

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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.

89.5/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

71.85

Improvement Activities

Cost

91.94

Referred Medical Equipment & Supplies CMS DME claims 14

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

Full face mask used with positive airway pressure device, each A7030