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KAREEM MOASIS MD
NPI 1538695572
Internal Medicine in Vista, CA

Active since May 11, 2017PECOS EnrolledAccepts Medicare Assignment
906 SYCAMORE AVE STE 201, VISTA, CA 92081(760) 691-1901(760) 691-1902 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 17, 2025, Jul 25, 2023, Jun 28, 2021 and 2 more (5 updates tracked since 2017).

About Kareem Moasis Md NPPES

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

KAREEM MOASIS MD (NPI 1538695572) is an individual internal medicine provider in Vista, California, licensed in California (A167456) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1538695572
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameKAREEM MOASISCredential: MD
Location Address906 SYCAMORE AVE STE 201Vista, CA 92081-7851
Mailing Address906 Sycamore Ave Ste 201Vista, CA 92081-7851 · (760) 691-1901 · Fax (760) 691-1902
Phone(760) 691-1901
Fax(760) 691-1902
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMay 11, 2017
Last NPPES UpdateSeptember 17, 20255 updates tracked since enumeration
NPPES CertifiedSeptember 17, 2025
✔ NPI 1538695572 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · A167456✔ Licensed in NV · 19849
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 ListedHospitalistTaxonomy 208M00000X · License 19849 (NV)
906 SYCAMORE AVE STE 201, Vista, CA 92081
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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

Kareem Moasis 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 ID345587630
PECOS Enrollment IDI20231103000134
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 Kareem Moasis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hanh M. Bui, MD, Apmc
Same address
Cardiovascular Disease
906 SYCAMORE AVE STE 104
Vista, CA 92081
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1649526518 (760) 630-2550
Beaver Medical Group P C
61 mi
Family Medicine
2 WEST FERN AVENUE
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 635 clinicians in this Medicare group
NPI 1649503319 (909) 793-3311

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 3

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
281 services74 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.
65 services44 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92081 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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

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

OASIS MEDICAL GROUP
Internal Medicine
906 SYCAMORE AVE STE 201
VISTA, CA 92081
San Diego County (619) 715-4289

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 Kareem Moasis's NPI number?

The NPI number for Kareem Moasis is 1538695572. It was assigned to this individual provider in the NPPES registry on May 11, 2017.

Where is Kareem Moasis located?

Kareem Moasis practices at 906 Sycamore Ave Ste 201, Vista, CA 92081. The listed phone number is (760) 691-1901.

What is Kareem Moasis's specialty?

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

Is Kareem Moasis enrolled in Medicare?

Yes. Kareem Moasis 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 Kareem Moasis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kareem Moasis reassigns Medicare benefits to 2 organizations: Hanh M. Bui, MD, Apmc (Vista, CA) and Beaver Medical Group P C (Redlands, 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 Kareem Moasis'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 Kareem Moasis was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.