J Gen Intern Med
Dr. Mark Winston Smith, MD
- Medicare services, 2024
- 227
- Medicare patients, 2024
- 110
- Part D claims, 2024
- 23
- Publications
- 33
- Hospital affiliations
- 2
- Practice address
- 1600 W Ave J, Lancaster, CA 93534
- Practice phone
- Call (661) 949-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Smith's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark Winston Smith is a pulmonologist in Lancaster, California
Dr. Smith practices at Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District.
Dr. Smith's NPI, 1326111790, was assigned on November 15, 2006. Dr. Smith graduated from Keck School of Medicine of USC in 2005. Dr. Smith holds Texas license R3217.
- NPI
- 1326111790NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658465695
- NPI enumeration date
- November 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 949-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Winston Smith practices at Antelope Valley Medical Center in Lancaster, California
Dr. Smith's primary practice is Antelope Valley Medical Center, at 1600 W Ave J, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 949-5500.
- Antelope Valley Medical Center1600 W Ave J, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 949-5500
Source: Dmand AI Affiliation Data
Dr. Mark Winston Smith is affiliated with 6 sites of care and 7 medical groups
Dr. Smith's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District. Dr. Smith is also affiliated with CHRISTUS Mother Frances Hospital - Tyler. The medical group on file is CCU Intensivists. Dmand AI also links Dr. Smith to 6 more medical groups and 4 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Winston Smith's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Smith practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Antelope Valley Medical Center | Available with a free account |
| +5 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Antelope Valley Healthcare District and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Winston Smith is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Smith's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Smith is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Smith's licenses on file in 15 states: Texas, South Dakota, California, Hawaii, Arizona, Washington, Idaho, Michigan, Florida, Iowa, Illinois, Maryland, New Jersey, New York and Oregon.
Specialties and state licenses
- Pulmonary disease, TexasPrimary
- South Dakota license
- Internal medicine, California
- Hawaii license
- Arizona license
- Washington license
- Idaho license
- Michigan license
- Florida license
- Iowa license
- Illinois license
- Maryland license
- New Jersey license
- New York license
- Oregon license
Pulmonologists near Dr. Smith
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Winston Smith billed Medicare for 227 services in 2024
CMS data shows 227 Medicare services from Dr. Smith across 1 procedure code in 2024, for 110 Medicare patients. Medicare paid $39,202 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Smith's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1582024: 22744%
- Imaging
- 2023: 142024: 0100%
- Surgery
- 2023: 112024: 0100%
Dr. Smith compared with the California median for pulmonologists, 2024
- Dr. Smith
- California median
- Medicare services
- 227vs 64965% below
- Medicare patients
- 110vs 27260% below
- Part D claims
- 13vs 42197% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Smith's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Smith?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Smith and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Winston Smith treated 110 Medicare patients in 2024, average age 72
CMS counts 110 Medicare patients who saw Dr. Smith in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 53% are also on Medicaid. Their average risk score is 3.00, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Smith's median patient age at 67, with 52% women.
Dr. Smith's Medicare patients by age, 2024
Dr. Smith's Medicare patients by sex, 2024
- Women6155%
- Men4945%
Chronic conditions among Dr. Smith's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Arthritis55%
- COPD51%
- Heart failure51%
- Ischemic heart disease49%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Smith's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Winston Smith wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Smith wrote 23 Medicare Part D claims. 96% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $131 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Smith's Part D claims by kind of drug, 2024
- Generic22 claims96%
- Brand-name and other1 claims4%
Dr. Smith's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 1318%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark Winston Smith takes part in Medicare
Dr. Smith accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Winston Smith has 33 publications on record
Dmand AI links 33 papers to Dr. Smith, published from 2007 to 2012. 2010 was the busiest year, with 4. The most frequent topics are United States Department of Veterans Affairs, Health Care Costs and Cost-Benefit Analysis. Dr. Smith has published most often in Clin J Am Soc Nephrol. Dr. Smith's most frequent co-authors are Glenn Matthew Chertow, MD, Kevin W. Finkel, MD and Michael J. Germain, MD.
Dr. Smith's papers by year, 2007 to 2012
Topics Dr. Smith writes about most
- United States Department of Veterans Affairs
- Health Care Costs
- Cost-Benefit Analysis
- Stress Disorders, Post-Traumatic
- Health Services Research
- Veterans
- Acute Kidney Injury
- Hospitals, Veterans
Dr. Smith's most frequent co-authors
- Glenn Matthew Chertow, MD1 shared paper
- Kevin W. Finkel, MD1 shared paper
- Michael J. Germain, MD1 shared paper
Recent publications by Dr. Smith
J Subst Abuse Treat
Clin J Am Soc Nephrol
Int J Infect Dis
See who Dr. Smith researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Smith works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Winston Smith received $412 in industry payments from 2019 to 2024
CMS Open Payments shows 21 general payments to Dr. Smith from 11 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Ironshore Pharmaceuticals Inc. paid the most, $98.
General payments to Dr. Smith by program year, 2019 to 2024
Companies that paid Dr. Smith the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Winston Smith graduated from Keck School of Medicine of USC
Dr. Smith graduated from Keck School of Medicine of USC in 2005.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Mark Winston Smith accepts plans from 22 insurance carriers
Dr. Smith is in network with 22 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 14. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Kaiser Permanente
- Aetna
- Alliant Health Plans
- +14 more carriersWith a free account
Plan types Dr. Smith accepts, by number of carriers
- HMO14
- PPO12
- Medicare10
- POS4
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Winston Smith's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark Winston Smith
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark Winston Smith's NPI number?
Dr. Mark Winston Smith's NPI number is 1326111790. It was assigned on November 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Winston Smith?
Dr. Mark Winston Smith is a pulmonologist in Lancaster, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mark Winston Smith practice?
Dr. Smith practices at 1600 W Ave J, Lancaster, CA 93534. Dr. Smith's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District. Dmand AI also links Dr. Smith to 6 medical groups and 4 group practices and clinics.
What is Dr. Mark Winston Smith's office phone number?
The practice phone on file for Dr. Smith is (661) 949-5500.
What is Dr. Mark Winston Smith's medical license number?
Dr. Smith holds Texas license R3217, one of the licenses on file in 15 states.
Which states has Dr. Mark Winston Smith been licensed in?
Dmand AI has state licenses on file for Dr. Smith in Texas (2017 to 2027), South Dakota (since 2023), California (2006 to 2026), Hawaii (2008 to 2026), Arizona (2017 to 2025), Washington (2015 to 2025), Idaho (2020 to 2024), Michigan (2016 to 2024), Florida (2008 to 2023), Iowa (2015 to 2023), Illinois (2009 to 2023), Maryland (2016 to 2023), New Jersey (2017 to 2023), New York (2011 to 2023) and Oregon (2017 to 2023).
Which hospitals is Dr. Mark Winston Smith affiliated with?
Dr. Smith practices at Antelope Valley Medical Center in Lancaster, California. Dr. Smith is also affiliated with CHRISTUS Mother Frances Hospital - Tyler.
What medical group is Dr. Mark Winston Smith part of?
Dr. Smith is linked to CCU Intensivists. Dmand AI links Dr. Smith to 6 more medical groups.
Does Dr. Mark Winston Smith accept Medicare?
Yes. CMS data shows Dr. Smith billed Medicare for 227 services in 2024, and Dr. Smith accepts Medicare assignment.
How many Medicare patients does Dr. Mark Winston Smith see?
CMS counts 110 Medicare patients who saw Dr. Smith in 2024, with an average age of 72.
Show 9 more questionsShow fewer questions
Is Dr. Mark Winston Smith board certified?
Yes. Dr. Smith is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Mark Winston Smith bill to Medicare?
In 2024, Dr. Smith's most billed Medicare services were critical care (99291).
Where did Dr. Mark Winston Smith go to medical school?
Dr. Smith graduated from Keck School of Medicine of USC in 2005.
What drugs does Dr. Mark Winston Smith prescribe most?
In 2024 Medicare Part D data, Dr. Smith's most prescribed drugs by claims were Zolpidem Tartrate.
Has Dr. Mark Winston Smith received payments from drug or device companies?
CMS Open Payments shows $412 in general payments to Dr. Smith from 11 companies from 2019 to 2024. The largest total came from Ironshore Pharmaceuticals Inc.
How long has Dr. Mark Winston Smith been practicing?
Dr. Smith graduated from medical school in 2005, 21 years ago.
Does Dr. Mark Winston Smith do research?
Dmand AI links 33 publications to Dr. Smith, published from 2007 to 2012.
Who does Dr. Mark Winston Smith publish with?
Dr. Smith's most frequent co-authors are Glenn Matthew Chertow, MD (1 shared paper), Kevin W. Finkel, MD (1 shared paper) and Michael J. Germain, MD (1 shared paper).
What insurance does Dr. Mark Winston Smith accept?
Dr. Smith is in network with 22 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 14. Check the plan with the practice before a visit.
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