1. Home
  2. Directory
  3. California
  4. Orange
  5. Internal Medicine
  6. NPI Profile

DR. SAIF AL YASEEN M.D.
NPI 1356684096
Internal Medicine in Orange, CA

Active since April 01, 2013PECOS EnrolledAccepts Medicare Assignment
2501 E CHAPMAN AVE, ORANGE, CA 92869(714) 633-1011 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, Jan 3, 2020, Mar 4, 2017 and 1 more (4 updates tracked since 2016).

About Dr. Saif Al Yaseen M.d. NPPES

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

DR. SAIF AL YASEEN M.D. (NPI 1356684096) is an individual internal medicine provider in Orange, California, licensed in California (141962) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Monica, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1356684096
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. SAIF AL YASEENCredential: M.D.
Location Address2501 E CHAPMAN AVEOrange, CA 92869-3204
Mailing Address26634 Sierra VisMission Viejo, CA 92692-3334
Phone(714) 633-1011
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateApril 1, 2013
Last NPPES UpdateAugust 29, 20234 updates tracked since enumeration
NPPES CertifiedAugust 29, 2023
✔ NPI 1356684096 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 · 141962
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 141962 (CA)
2501 E CHAPMAN AVE, Orange, CA 92869
Open in Google Maps ↗

Secondary Practice Location 1

Location 11250 16th St Ste A454Santa Monica, CA 90404-1249 · Phone (310) 301-9469 · Fax (310) 319-4908

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. Saif Al Yaseen M.d. 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 ID1759673908
PECOS Enrollment IDI20160707002045
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

3

Medicare enrollment records show Saif Al Yaseen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Providence Medical Foundation
2.2 mi
Hematology & Oncology
1010 W LA VETA AVE STE 200
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1801443510 (714) 835-1800
Chest And Critical Care Consultants A Medical Group
2.5 mi
Pulmonary Disease
999 N TUSTIN AVE STE 1
Santa Ana, CA 92705
  • Reassigned Medicare billing, California enrollment
  • 96 clinicians in this Medicare group
NPI 1407943624 (714) 836-6800
Wequre Inc.
17 mi
Internal Medicine
2083 COMPTON AVE STE 203
Corona, CA 92881
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1487309241 (951) 339-9700

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 5

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.
254 services111 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.
117 services116 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.
88 services85 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.
80 services48 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.
49 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

PATRICIA GOINGS N.P., R.N.
Nurse Practitioner
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 628-3110
DR. JAMES W ROH MD
Hospitalist
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 639-9401
HENRY YUAN M.D.
Internal Medicine (Nephrology)
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 771-8000
DR. ADRIAN VASILE POP O.D.
Optometrist
2501 E CHAPMAN AVE, SUITE 105
ORANGE, CA 92869
Orange County (714) 288-8282
JERRY F TSAI M.D.
Internal Medicine
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 633-1011
ANWAR ABDELHADI M.D.
Hospitalist
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 771-8000
KATHLEEN E. GLASPY M.D.
Internal Medicine
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 628-3110
JASON R. CABERTO D.O.
Hospitalist
2501 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 771-8000

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 Saif Al Yaseen's NPI number?

The NPI number for Saif Al Yaseen is 1356684096. It was assigned to this individual provider in the NPPES registry on April 1, 2013.

Where is Saif Al Yaseen located?

Saif Al Yaseen practices at 2501 E Chapman Ave, Orange, CA 92869. The listed phone number is (714) 633-1011.

What is Saif Al Yaseen's specialty?

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

Is Saif Al Yaseen enrolled in Medicare?

Yes. Saif Al Yaseen 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 Saif Al Yaseen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Saif Al Yaseen reassigns Medicare benefits to 3 organizations: Providence Medical Foundation (Orange, CA), Chest And Critical Care Consultants A Medical Group (Santa Ana, CA) and Wequre Inc. (Corona, 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 Saif Al Yaseen'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 Saif Al Yaseen 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.