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CHRISTOPHER FOSS MD
NPI 1629431044
Internal Medicine - Hematology & Oncology in Santa Clarita, CA

Active since April 02, 2016PECOS EnrolledAccepts Medicare Assignment
76.26/100
CMS Quality Rating
25751 MCBEAN PKWY, SANTA CLARITA, CA 91355(661) 839-1801 Get Directions Write a Review

NPPES record last updated: March 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 13, 2025, Sep 1, 2022, Nov 1, 2021 and 1 more (4 updates tracked since 2016).

About Christopher Foss Md NPPES

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

CHRISTOPHER FOSS MD (NPI 1629431044) is an individual hematology & oncology provider in Santa Clarita, California, licensed in California (A155463) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (2016).

NPPES Registry Identity

NPI1629431044
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameCHRISTOPHER FOSSCredential: MD
Location Address25751 MCBEAN PKWYSanta Clarita, CA 91355-3701
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (661) 839-1801
Phone(661) 839-1801
Sole ProprietorYes
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2016
Enumeration DateApril 2, 2016
Last NPPES UpdateMarch 13, 20254 updates tracked since enumeration
NPPES CertifiedMarch 13, 2025
✔ NPI 1629431044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · A155463
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedHospitalistTaxonomy 208M00000X · License A155463 (CA)
25751 MCBEAN PKWY, Santa Clarita, CA 91355
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Other Identifiers 1

MedicaidCF3232267556CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher Foss 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 ID941699169
PECOS Enrollment IDI20211109003182
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.

Areas of Expertise CMS Part B claims 10

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.

Injection, epoetin alfa, (for non-esrd use), 1000 units J0885
Epoetin alfa is a medication injected to help your body produce more red blood cells, improving energy levels and reducing tiredness. It's often used for patients with certain types of anemia. Each injection contains 1000 units of the medicine.
1,900 services11 patients
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.
199 services115 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
167 services69 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
134 services18 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.
93 services46 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
71 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91355 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.26/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality62.74
Improvement Activities40
Cost59.29

Other Providers at the Same Location NPPES 15

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

NEUROSURGICAL ASSOCIATES OF CALIFORNIA
Neurological Surgery
25751 MCBEAN PKWY, SUITE 305
VALENCIA, CA 91355
Los Angeles County (661) 367-9195
KERRY R CLARK M.D.
Internal Medicine
25751 MCBEAN PKWY, STE 210
VALENCIA, CA 91355
Los Angeles County (661) 284-3100
MISS PARTIKSHA DHANDA FNP-C
Nurse Practitioner (Family)
25751 MCBEAN PKWY
SANTA CLARITA, CA 91355
Los Angeles County (661) 755-2421
MOTION PICTURE AND TELEVISION FUND MEDICAL GROUP INC
Internal Medicine
25751 MCBEAN PKWY, STE 210
VALENCIA, CA 91355
Los Angeles County (661) 284-3100
PARHAM YASHAR M.D.
Neurological Surgery
25751 MCBEAN PKWY, SUITE 305
VALENCIA, CA 91355
Los Angeles County (661) 799-2542
RACHEL LONG MD
Obstetrics & Gynecology
25751 MCBEAN PKWY, SUITE #220
VALENCIA, CA 91355
Los Angeles County (661) 290-3337
ROBERT W MAGID MAMFT INC
Clinic/Center (Mental Health (Including Community Mental Health Center))
25751 MCBEAN PKWY, SUITE 310-1A
VALENCIA, CA 91355
Los Angeles County (661) 296-7759
MR. ROBERT WILLIAM MAGID MFT
Marriage & Family Therapist
25751 MCBEAN PKWY, SUITE 310-1A
VALENCIA, CA 91355
Los Angeles County (661) 296-7759

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 Christopher Foss's NPI number?

The NPI number for Christopher Foss is 1629431044. It was assigned to this individual provider in the NPPES registry on April 2, 2016.

Where is Christopher Foss located?

Christopher Foss practices at 25751 Mcbean Pkwy, Santa Clarita, CA 91355. The listed phone number is (661) 839-1801.

What is Christopher Foss's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Christopher Foss enrolled in Medicare?

Yes. Christopher Foss 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.

When was this NPI record last updated?

The NPPES record for Christopher Foss was last updated on March 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.