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MONTEREY HOSPITALIST MEDICAL GROUP
NPI 1043321623
Internal Medicine in Monterey, CA

Active since August 31, 2006
23625 HOLMAN HWY, MONTEREY, CA 93940(831) 622-2708(831) 622-2709 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Monterey Hospitalist Medical Group NPPES

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

MONTEREY HOSPITALIST MEDICAL GROUP (NPI 1043321623) is a healthcare organization registered as an internal medicine in Monterey, California and active in the NPI registry since August 2006. The organization lists Jeffrey Barnum, Director, as its authorized official.

NPPES Registry Identity

NPI1043321623
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMONTEREY HOSPITALIST MEDICAL GROUP
Location Address23625 HOLMAN HWYMonterey, CA 93940-5902
Mailing Address100 Wilson Rd, Suite 100Monterey, CA 93940-7885 · (831) 649-1000 · Fax (831) 649-4961
Phone(831) 622-2708
Fax(831) 622-2709
Organization SubpartNo
Authorized OfficialJeffrey BarnumDirector · (831) 649-1000
Enumeration DateAugust 31, 2006
Last NPPES UpdateJune 29, 2026
NPPES CertifiedJune 29, 2026
✔ NPI 1043321623 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
23625 HOLMAN HWY, Monterey, CA 93940
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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, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Monterey Hospitalist Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20061106000329Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

50

Medicare enrollment records show 50 clinicians reassign Medicare billing to Monterey Hospitalist Medical Group, which bills Medicare for the services they deliver. Of these, 17 practice at this address and 37 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Hospitalist40
Internal Medicine5
Family Practice4
Infectious Disease1

Nearest to this location (20)

See all 50
Nesreen Khraisha, M.D.
Infectious Disease
NPI 1992026496
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Ian Atkinson, M.D.
Hospitalist
NPI 1205173580
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Matthew Awerbuck, M.D.
Hospitalist
NPI 1104189828
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Shoshauna Baer, M.D.
Hospitalist
NPI 1881126209
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Juan Cabrera, MD
Hospitalist
NPI 1043770936
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Neelam Chaudhary, M.D.
Hospitalist
NPI 1871943928
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
David Eikenberry, MD
Hospitalist
NPI 1679661409
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Sergio Garcia-Toledo, M.D.
Internal Medicine
NPI 1831329192
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Ram Hanno, M.D.
Hospitalist
NPI 1780003525
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Mikko Helenius, M.D.
Hospitalist
NPI 1962431940
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOSSame address
Jennifer Huynh, MD
Hospitalist
NPI 1245790229
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Daniel Iancu
Hospitalist
NPI 1265010615
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Osayi Lawani, MD
Hospitalist
NPI 1164983342
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Frank Ma, MD
Hospitalist
NPI 1851972442
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Juan Magana
Internal Medicine
NPI 1760879605
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Brennan Mosch, M.D.
Hospitalist
NPI 1215356217
23625 HOLMAN HWY
Monterey, CA 93940
(831) 624-5311
✔ PECOS✔ Accepts MedicareSame address
Jagroop Singh, MD
Hospitalist
NPI 1184855231
23625 HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts MedicareSame address
Jeffrey Barnum, MD
Hospitalist
NPI 1912932211
23625 WR HOLMAN HIGHWAY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts Medicare4.1 mi
Charles Bates, MD
Hospitalist
NPI 1356411268
23625 WR HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS4.1 mi
Michael Davis, DO
Hospitalist
NPI 1548259435
23625 WR HOLMAN HWY
Monterey, CA 93940
(831) 622-2708
✔ PECOS✔ Accepts Medicare4.1 mi
See all 50 clinicians

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

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 Monterey Hospitalist Medical Group's NPI number?

The NPI number for Monterey Hospitalist Medical Group is 1043321623. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is Monterey Hospitalist Medical Group located?

Monterey Hospitalist Medical Group is located at 23625 Holman Hwy, Monterey, CA 93940. The listed phone number is (831) 622-2708.

What is Monterey Hospitalist Medical Group's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Monterey Hospitalist Medical Group enrolled in Medicare?

Yes. Monterey Hospitalist Medical Group is registered in the Medicare PECOS enrollment system.

When is Monterey Hospitalist Medical Group's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Monterey Hospitalist Medical Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 50 clinicians in 4 Medicare specialties reassign their Medicare billing to Monterey Hospitalist Medical Group. A 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 the clinician's services. The largest specialties are Hospitalist (40), Internal Medicine (5) and Family Practice (4). Of these, 17 practice at this address and 37 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Monterey Hospitalist Medical Group was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.