Medicare Enrolled

Dr. Christopher Foss, MD

Hospitalist Physician · Santa Clarita, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
25751 MCBEAN PKWY, Santa Clarita, CA 91355
6618391801
In practice since 2016 (10 years)
NPI: 1629431044 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Foss from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Foss? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Foss

Dr. Christopher Foss is a hospitalist physician in Santa Clarita, CA, with 10 years of NPI registration. Based on federal Medicare data, Dr. Foss performed 2,280 Medicare services across 308 unique beneficiaries.

Between the years covered by Open Payments, Dr. Foss received a total of $7,261 from 45 pharmaceutical and/or device companies across 181 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hospitalist physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Foss is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 10 years in practice ▲ Top 5% volume in CA $7,261 industry payments

Medicare Practice Summary

Medicare Utilization ↗
2,280
Medicare services
Top 5% in CA for hospitalist physician
308
Unique beneficiaries
$27
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~228 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Epoetin alfa injection (Procrit) for anemia
An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis.
1,560 $6 $23
Blood draw (venipuncture)
Insertion of a needle into a vein to collect a blood sample.
132 $8 $13
Office visit, established patient (20-29 min)
An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition.
112 $74 $253
Hospital follow-up visit, moderate complexity
Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service.
112 $66 $191
Drug injection, under skin or into muscle
A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle.
101 $12 $49
Office visit, established patient (30-39 min)
A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition.
88 $104 $356
Office visit, established patient, complex (40-54 min)
An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter.
67 $147 $499
New patient office visit, complex (60-74 min) 53 $182 $610
Initial hospital admission, high complexity
Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter.
31 $145 $530
Hospital follow-up visit, high complexity
Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter.
24 $100 $281
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$7,261
Total received (2018-2024)
Avg $1,037/year across 7 years
Top 3% in CA for hospitalist physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
181
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$7,052 (97.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$209 (2.9%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,354
2023
$1,307
2022
$815
2021
$2,413
2020
$265
2019
$1,079
2018
$27

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Lilly USA, LLC
$175
EMD Serono, Inc.
$142
Bayer Healthcare Pharmaceuticals Inc.
$122
GlaxoSmithKline, LLC.
$107
AstraZeneca Pharmaceuticals LP
$106
Eisai Inc.
$77
Genentech USA, Inc.
$69
ABBVIE INC.
$63
BeiGene USA, Inc.
$59
Takeda Pharmaceuticals U.S.A., Inc.
$52
PFIZER INC.
$52
Daiichi Sankyo Inc.
$46
Ipsen Biopharmaceuticals, Inc
$43
JAZZ PHARMACEUTICALS INC.
$31
Exelixis Inc.
$31
GENZYME CORPORATION
$30
Astellas Pharma US Inc
$27
SpringWorks Therapeutics, Inc.
$25
Alexion Pharmaceuticals, Inc.
$24
Genmab U.S., Inc.
$20
Blueprint Medicines Corporation
$19
Mirati Therapeutics, Inc.
$17
Incyte Corporation
$15
Top 3 companies account for 32.5% of 2024 payments
All-time payments by company (2018-2024) ›
JAZZ PHARMACEUTICALS INC.
$907
AstraZeneca Pharmaceuticals LP
$759
GENZYME CORPORATION
$501
Lilly USA, LLC
$482
Celgene Corporation
$467
Alexion Pharmaceuticals, Inc.
$374
Seagen Inc.
$369
Exelixis Inc.
$273
Takeda Pharmaceuticals U.S.A., Inc.
$254
Amgen Inc.
$250
ABBVIE INC.
$236
Bayer Healthcare Pharmaceuticals Inc.
$221
Incyte Corporation
$194
GlaxoSmithKline, LLC.
$192
EMD Serono, Inc.
$180
Janssen Biotech, Inc.
$151
Akcea Therapeutics, Inc.
$119
Genentech USA, Inc.
$114
Bayer HealthCare Pharmaceuticals Inc.
$98
PFIZER INC.
$92
BeiGene USA, Inc.
$82
Merck Sharp & Dohme LLC
$78
Eisai Inc.
$77
Daiichi Sankyo Inc.
$69
Astellas Pharma US Inc
$66
Alnylam Pharmaceuticals Inc.
$65
Gilead Sciences, Inc.
$61
TAIHO ONCOLOGY, INC.
$57
Novartis Pharmaceuticals Corporation
$52
Genmab U.S., Inc.
$50
E.R. Squibb & Sons, L.L.C.
$45
Ipsen Biopharmaceuticals, Inc
$43
SERVIER PHARMACEUTICALS LLC
$41
Kite Pharma, Inc.
$33
SpringWorks Therapeutics, Inc.
$25
Myriad Genetic Laboratories, Inc.
$22
Foundation Medicine, Inc.
$22
ImmunoGen, Inc.
$20
Sumitomo Pharma America, Inc.
$20
Blueprint Medicines Corporation
$19
Jazz Pharmaceuticals Inc.
$18
Mirati Therapeutics, Inc.
$17
EISAI INC.
$17
Rigel Pharmaceuticals, Inc.
$16
SOBI, INC
$13
Top 3 companies account for 29.9% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · ALUNBRIG · AYVAKIT · BAVENCIO · BLENREP · BOSULIF · BRUKINSA · Blincyto · CABOMETYX · CALQUENCE · CYRAMZA · Cabometyx · DARZALEX · DEFITELIO · Doptelet · ELAHERE · ELITEK · Elahere · Enhertu · Epkinly · FOUNDATIONONE LIQUID CDX · FRUZAQLA · GIVLAARI · ICLUSIG · IMFINZI · Inrebic · JAKAFI · JEMPERLI · KEYTRUDA · KRAZATI · Kyprolis · LIBTAYO · LONSURF · LYNPARZA · Lenvima · MYRISK · Nplate · Nubeqa · OGSIVEO · OJJAARA · ONUREG · OPDUALAG · ORGOVYX · Onivyde · PADCEV · PLUVICTO · Padcev · Pomalyst · RETEVMO · RYLAZE · Revlimid · Rezlidhia · SARCLISA · Soliris · Stivarga · TABRECTA · TAGRISSO · TEGSEDI · TIBSOVO · Tecentriq · Trodelvy · ULTOMIRIS · Ultomiris · VENCLEXTA · VERZENIO · VYXEOS · XTANDI · Xofigo · Xtandi · Yescarta · ZEJULA · ZEPZELCA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 3% for hospitalist physician in CA.

Looking for a hospitalist physician in Santa Clarita?
Compare hospitalist physicians in the Santa Clarita area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Hospitalist physicians within 10 mi
131
Per 100K population
1.3
County median income
$87,760
Nearest hospital
HENRY MAYO NEWHALL HOSPITAL
0.0 mi

Data Sources

Provider Registry NPPES Weekly updates
Medicare Enrollment PECOS Monthly updates
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Foss is a mixed practice specialist, with above-average Medicare volume (top 5% in CA), with low-engagement industry engagement in the top 3% of CA peers.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Foss experienced with epoetin alfa injection (procrit) for anemia?
Based on Medicare claims data, Dr. Foss performed 1,560 epoetin alfa injection (procrit) for anemia services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Foss receive payments from pharmaceutical companies?
Yes. Dr. Foss received a total of $7,261 from 45 companies across 181 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Foss's costs compare to other hospitalist physicians in Santa Clarita?
Dr. Foss's average Medicare payment per service is $27. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Foss) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →