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Dr. Lew D. Barker, MD
- Medicare services, 2024
- 1,130
- Medicare patients, 2024
- 386
- Part D claims, 2024
- 10,302
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 3100 W Christoffersen Pkwy, Turlock, CA 95382
- Practice phone
- Call (209) 524-1211
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sutter Valley Medical Foundation
Turlock, California
Find Dr. Barker'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. Lew D. Barker is a family medicine physician in Turlock, California
Dr. Barker practices at Sutter Valley Medical Foundation in Turlock, California.
Dr. Barker's NPI, 1295770337, was assigned on June 20, 2006. Dr. Barker graduated from Loma Linda University School Of Medicine in 1981. Dr. Barker's California license number on file is G52075.
- NPI
- 1295770337NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628132099
- NPI enumeration date
- June 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (209) 524-1211
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lew D. Barker practices at Sutter Valley Medical Foundation in Turlock, California
Dr. Barker's primary practice is Sutter Valley Medical Foundation, at 3100 W Christoffersen Pkwy, Turlock, CA 95382 in Stanislaus County. The practice phone is (209) 524-1211.
- Sutter Valley Medical Foundation3100 W Christoffersen Pkwy, Turlock, CA 95382 · Stanislaus CountyPhone(209) 524-1211
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lew D. Barker is affiliated with 6 sites of care and 1 medical group
Dr. Barker's primary practice is Sutter Valley Medical Foundation in Turlock, California. Dr. Barker is also affiliated with Memorial Medical Center. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Barker to 3 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lew D. Barker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barker practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Valley Medical Foundation | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lew D. Barker is one of 15,680 family medicine physicians in California
Family medicine is Dr. Barker's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Barker's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists acid reflux, acute mini-stroke (TIA), acute skin infection, anxiety, asthma, atrial fibrillation and flutter, bursitis and cardiomyopathy among the conditions Dr. Barker treats.
Family medicine physicians near Dr. Barker
Counts of family medicine physicians 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. Lew D. Barker billed Medicare for 1,130 services in 2024
CMS data shows 1,130 Medicare services from Dr. Barker across 8 procedure codes in 2024, for 386 Medicare patients. Medicare paid $81,525 for them. Every service was in an office.
Dr. Barker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9212024: 8735%
- Other services
- 2023: 1792024: 10939%
- Tests and treatments
- 2023: 712024: 8114%
- Drugs given in the office
- 2023: 532024: 6726%
Dr. Barker compared with the California median for family medicine physicians, 2024
- Dr. Barker
- California median
- Medicare services
- 1,130vs 2464.6 times
- Medicare patients
- 386vs 1183.3 times
- Part D claims
- 9,584vs 83311.5 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Barker'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. Barker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barker and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lew D. Barker treated 386 Medicare patients in 2024, average age 74
CMS counts 386 Medicare patients who saw Dr. Barker in 2024. The largest group is 65 to 74, with 172 patients. 72% of them have high blood pressure, and 67% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Barker's median patient age at 67, with 60% women.
Dr. Barker's Medicare patients by age, 2024
Dr. Barker's Medicare patients by sex, 2024
- Women20854%
- Men17846%
Chronic conditions among Dr. Barker's Medicare patients, 2024
- High blood pressure72%
- High cholesterol67%
- Arthritis46%
- Diabetes34%
- Ischemic heart disease26%
- Chronic kidney disease25%
- Anxiety24%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barker'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
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lew D. Barker wrote 10,302 Medicare Part D claims in 2024
In 2024, Dr. Barker wrote 10,302 Medicare Part D claims for 669 patients. 92% of them were for generic drugs. CMS names the drug for 9,584 of them, across 138 drugs with 11 or more claims each, at $375,296 in total drug cost. In 2023, CMS named 10,052 claims across 138 drugs.
Dr. Barker's Part D claims by kind of drug, 2024
- Generic9,514 claims92%
- Brand-name750 claims7%
- Other38 claims0%
Dr. Barker'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.
Drug classes CMS tracks in Dr. Barker's Part D claims, 2024
- Opioids6%635 of 10,302 claims
- Antibiotics2%206 of 10,302 claims
- Antipsychotics, patients 65 and over1%75 of 10,302 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 10,0522024: 9,5845%
Drugs named by CMS: 138 in 2024, 138 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
Dr. Lew D. Barker offers telehealth to Medicare patients
Dr. Barker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Barker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lew D. Barker has 2 publications on record
Dmand AI links 2 papers to Dr. Barker in 2013. Dr. Barker's most frequent co-authors are Michael Joseph Brennan, MD, Richard F. Silver, MD and Robert Steven Wallis, MD.
Dr. Barker's most frequent co-authors
- Michael Joseph Brennan, MD1 shared paper
- Richard F. Silver, MD1 shared paper
- Robert Steven Wallis, MD1 shared paper
Recent publications by Dr. Barker
Tuberculosis (Edinb)
See who Dr. Barker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barker works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lew D. Barker received $1,323 in industry payments from 2016 to 2024
CMS Open Payments shows 118 general payments to Dr. Barker from 18 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. GlaxoSmithKline, LLC. paid the most, $282.
General payments to Dr. Barker by program year, 2016 to 2024
General payments to Dr. Barker by kind, 2016 to 2024
- Food and beverage$1,30699%
- Education$171%
Companies that paid Dr. Barker the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lew D. Barker has 1 award and honors on record
Dmand AI lists 1 award for Dr. Barker, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Barker
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Lew D. Barker graduated from Loma Linda University School Of Medicine
Dr. Barker graduated from Loma Linda University School Of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Lew D. Barker accepts plans from 13 insurance carriers
Dr. Barker is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +5 more carriersWith a free account
Plan types Dr. Barker accepts, by number of carriers
- PPO10
- Medicare8
- HMO6
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Lew D. Barker'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Lew D. Barker
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. Lew D. Barker's NPI number?
Dr. Lew D. Barker's NPI number is 1295770337. It was assigned on June 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lew D. Barker?
Dr. Lew D. Barker is a family medicine physician in Turlock, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Lew D. Barker practice?
Dr. Barker practices at 3100 W Christoffersen Pkwy, Turlock, CA 95382. Dr. Barker's primary practice is Sutter Valley Medical Foundation in Turlock, California. Dmand AI also links Dr. Barker to 3 home health agencies and 1 group practice or clinic.
What is Dr. Lew D. Barker's office phone number?
The practice phone on file for Dr. Barker is (209) 524-1211.
What is Dr. Lew D. Barker's medical license number?
Dr. Barker's California license number on file is G52075, one of the licenses on file in 2 states.
Which states has Dr. Lew D. Barker been licensed in?
Dmand AI has state licenses on file for Dr. Barker in California (1984 to 2025) and Florida (1982 to 1985).
Which hospitals is Dr. Lew D. Barker affiliated with?
Dr. Barker is affiliated with Memorial Medical Center.
What medical group is Dr. Lew D. Barker part of?
Dr. Barker is linked to SGMF Radiology.
Does Dr. Lew D. Barker accept Medicare?
Yes. CMS data shows Dr. Barker billed Medicare for 1,130 services in 2024, and Dr. Barker accepts Medicare assignment.
Does Dr. Lew D. Barker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Barker as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Lew D. Barker see?
CMS counts 386 Medicare patients who saw Dr. Barker in 2024, with an average age of 74.
What services does Dr. Lew D. Barker bill to Medicare?
In 2024, Dr. Barker's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Lew D. Barker go to medical school?
Dr. Barker graduated from Loma Linda University School Of Medicine in 1981.
What drugs does Dr. Lew D. Barker prescribe most?
In 2024 Medicare Part D data, Dr. Barker's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Omeprazole.
Has Dr. Lew D. Barker received payments from drug or device companies?
CMS Open Payments shows $1,323 in general payments to Dr. Barker from 18 companies from 2016 to 2024. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Lew D. Barker been practicing?
Dr. Barker graduated from medical school in 1981, 45 years ago.
Does Dr. Lew D. Barker do research?
Dmand AI links 2 publications to Dr. Barker.
Who does Dr. Lew D. Barker publish with?
Dr. Barker's most frequent co-authors are Michael Joseph Brennan, MD (1 shared paper), Richard F. Silver, MD (1 shared paper) and Robert Steven Wallis, MD (1 shared paper).
What insurance does Dr. Lew D. Barker accept?
Dr. Barker is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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