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CHAYCE WILLIAM HARTUNG MD
NPI 1336778844
Student in an Organized Health Care Education/Training Program in Merced, CA

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
315 E 13TH ST, MERCED, CA 95341(209) 564-4500(209) 564-4598 Get Directions Write a Review

NPPES record last updated: August 16, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 16, 2023, Apr 6, 2020 (2 updates tracked since 2020).

About Chayce William Hartung Md NPPES

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

CHAYCE WILLIAM HARTUNG MD (NPI 1336778844) is an individual student in an organized health care education/training program in Merced, California and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1336778844
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameCHAYCE WILLIAM HARTUNGCredential: MD
Location Address315 E 13TH STMerced, CA 95341-6211
Mailing Address7300 N Fresno StFresno, CA 93720-2941 · (559) 448-4154
Phone(209) 564-4500
Fax(209) 564-4598
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateAugust 16, 20232 updates tracked since enumeration
NPPES CertifiedAugust 16, 2023
✔ NPI 1336778844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Also ListedFamily MedicineTaxonomy 207Q00000X · License A187954 (CA)
315 E 13TH ST, Merced, CA 95341
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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

Chayce William Hartung 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 ID1254793060
PECOS Enrollment IDI20230810002841
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 Chayce Hartung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
67 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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

Other Providers at the Same Location NPPES 11

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

MRS. AMANDA ELIZA GIBSON FNP-C
Nurse Practitioner (Family)
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
DR. JONATHAN WONGSAVANH DO
Student in an Organized Health Care Education/Training Program
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
JATINDER KAUR KANG FNP
Nurse Practitioner (Family)
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
HA THI BUI MD
Student in an Organized Health Care Education/Training Program
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
CARMIN JIA MIN LIANG DO
Student in an Organized Health Care Education/Training Program
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
DR. RICHARD HSU DO
Family Medicine
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4507
DR. STEPHANIE VAUX VOYLES MD
Family Medicine
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500
DR. SIMRIT SINGH DYAL MD
Family Medicine
315 E 13TH ST
MERCED, CA 95341
Merced County (209) 564-4500

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 Chayce Hartung's NPI number?

The NPI number for Chayce Hartung is 1336778844. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Chayce Hartung located?

Chayce Hartung practices at 315 E 13th St, Merced, CA 95341. The listed phone number is (209) 564-4500.

What is Chayce Hartung's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Chayce Hartung enrolled in Medicare?

Yes. Chayce Hartung is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Chayce Hartung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chayce Hartung reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Chayce Hartung'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 Chayce Hartung was last updated on August 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.