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DR. YOSEF DIAB MD
NPI 1053948026
Internal Medicine in Santa Maria, CA

Active since March 26, 2020PECOS EnrolledAccepts Medicare Assignment
1400 E CHURCH ST, SANTA MARIA, CA 93454(805) 475-3640 Get Directions Write a Review

NPPES record last updated: August 29, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 29, 2023, Mar 26, 2020 (2 updates tracked since 2020).

About Dr. Yosef Diab Md NPPES

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

DR. YOSEF DIAB MD (NPI 1053948026) is an individual internal medicine provider in Santa Maria, California, licensed in California (A186325) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boca Raton, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1053948026
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. YOSEF DIABCredential: MD
Location Address1400 E CHURCH STSanta Maria, CA 93454-5906
Mailing Address1679 Coral DrSanta Maria, CA 93454-3433 · (805) 260-8498
Phone(805) 475-3640
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 26, 2020
Last NPPES UpdateAugust 29, 20232 updates tracked since enumeration
NPPES CertifiedAugust 29, 2023
✔ NPI 1053948026 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A186325
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1400 E CHURCH ST, Santa Maria, CA 93454
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Secondary Practice Location 1

Location 1800 Meadows RdBoca Raton, FL 33486-2304 · Phone (561) 955-7100

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. Yosef Diab 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 ID8224459359
PECOS Enrollment IDI20230915002795
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

2

Medicare enrollment records show Yosef Diab reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Central Coast In-Patient Consultants, Inc.
Same address
Internal Medicine
1400 EAST CHRUCH STREET
Santa Maria, CA 93456
  • Reassigned Medicare billing, California enrollment
  • 53 clinicians in this Medicare group
NPI 1609096882 (805) 739-3000
Lompoc Hospitalist Group PC
21 mi
Hospitalist
1515 E OCEAN AVE
Lompoc, CA 93436
  • Reassigned Medicare billing, California enrollment
  • 32 clinicians in this Medicare group
NPI 1891335717 (805) 737-3300

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 6

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.
402 services194 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
165 services88 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
157 services152 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.
132 services127 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.
31 services27 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93454 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
$139.99 typical visit price
range $62.01 – $184.40
Typical copayment $34.99 (range $15.50 – $46.10)
Most-billed visit code 99204
Established Patient
$108.26 typical visit price
range $20.60 – $151.20
Typical copayment $27.06 (range $5.15 – $37.80)
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 20

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

MR. JORDAN RYAN WILLIAMS PA-C
Physician Assistant
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3000
KATELYN YARNOLD LCSW
Social Worker
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3000
KENTON JONES DO, MS
Student in an Organized Health Care Education/Training Program
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3000
ERICA CHENG LIU PA-C
Physician Assistant
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (855) 980-3683
DR. JAMES W JONES M.D.
Internal Medicine (Nephrology)
1400 E CHURCH ST, BUILDING 8
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3561
DR. DAVID ALOYSIUS KETELAAR M.D.
Emergency Medicine
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3200
DR. DEBRA LYNN WEINSTEIN M.D.
Emergency Medicine
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3200
DR. SIRI ATMA SINGH KHALSA MD
Internal Medicine
1400 E CHURCH ST
SANTA MARIA, CA 93454
Santa Barbara County (805) 739-3215

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 Yosef Diab's NPI number?

The NPI number for Yosef Diab is 1053948026. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Yosef Diab located?

Yosef Diab practices at 1400 E Church St, Santa Maria, CA 93454. The listed phone number is (805) 475-3640.

What is Yosef Diab's specialty?

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

Is Yosef Diab enrolled in Medicare?

Yes. Yosef Diab 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 organizations bill Medicare for Yosef Diab's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yosef Diab reassigns Medicare benefits to 2 organizations: Central Coast In-Patient Consultants, Inc. (Santa Maria, CA) and Lompoc Hospitalist Group PC (Lompoc, CA). Each 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 Yosef Diab'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 Yosef Diab was last updated on August 29, 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.