DR. JONATHAN KEYES MD
NPI 1578149381
Internal Medicine - Nephrology in Visalia, CA

Q: What is Jonathan Keyes's NPI number?

The NPI number for Jonathan Keyes is 1578149381. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Q: What is Jonathan Keyes's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Jonathan Keyes was last updated on August 19, 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 March 22, 2021PECOS Enrolled

233 E CALDWELL AVE, VISALIA, CA 93277(559) 228-6600(559) 226-3709 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 19, 2026, Mar 22, 2021 (2 updates tracked since 2021).

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About Dr. Jonathan Keyes Md NPPES

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

DR. JONATHAN KEYES MD (NPI 1578149381) is an individual nephrology provider in Visalia, California, licensed in California (A195221) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of University Of Florida College Of Medicine (2021).

NPPES Registry Identity

NPI1578149381

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. JONATHAN KEYESCredential: MD

Location Address233 E CALDWELL AVEVisalia, CA 93277-7605

Mailing Address568 E Herndon Ave Ste 201Fresno, CA 93720-2989 · (559) 228-6600 · Fax (559) 226-3709

Phone(559) 228-6600

Fax(559) 226-3709

Sole ProprietorYes

Medical School CMSUniversity Of Florida College Of MedicineGraduated 2021

Enumeration DateMarch 22, 2021

Last NPPES UpdateAugust 19, 20262 updates tracked since enumeration

NPPES CertifiedAugust 19, 2026

✔ NPI 1578149381 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · A195221

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

233 E CALDWELL AVE, Visalia, CA 93277

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jonathan Keyes Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466854013

PECOS Enrollment IDI20260521001293

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 Reassignment

Medicare enrollment records show Jonathan Keyes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Nephrology Group, Inc.

46 mi

Nephrology

568 E HERNDON AVE, SUITE 201
Fresno, CA 93720

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

NPI 1205906229 (559) 228-6600

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93277 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.

Other Providers at the Same Location NPPES 2

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

SUKHPREET KAUR FNP

Nurse Practitioner (Family)

233 E CALDWELL AVE
VISALIA, CA 93277

Tulare County (559) 228-6600

DR. SREEDHAR REDDY ADAPA M.D.

Internal Medicine (Nephrology)

233 E CALDWELL AVE
VISALIA, CA 93277

Tulare County (559) 228-6600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jonathan Keyes's NPI number?

The NPI number for Jonathan Keyes is 1578149381. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Jonathan Keyes located?

Jonathan Keyes practices at 233 E Caldwell Ave, Visalia, CA 93277. The listed phone number is (559) 228-6600.

What is Jonathan Keyes's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Jonathan Keyes enrolled in Medicare?

Yes. Jonathan Keyes is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jonathan Keyes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Keyes reassigns Medicare benefits to The Nephrology Group, Inc. (Fresno, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jonathan Keyes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jonathan Keyes was last updated on August 19, 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.