Dr. Mark S. Barats, MD
- Medicare services, 2024
- 20,553
- Medicare patients, 2024
- 731
- Part D claims, 2024
- 59,388
- Publications
- 1
- MIPS score, 2024
- 100
- Practice address
- 948 N Fairfax Ave, West Hollywood, CA 90046
- Practice phone
- Call (323) 654-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mark Barats MD a Professional Corporation
West Hollywood, California
Find Dr. Barats' 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 S. Barats is a nephrologist in West Hollywood, California
Dr. Barats practices at Mark Barats MD a Professional Corporation in West Hollywood, California.
Dr. Barats' NPI, 1720134695, was assigned on January 25, 2007. Dr. Barats graduated from Latvian Medical Academy in 1984. Dr. Barats holds California license A56228.
- NPI
- 1720134695NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204749542
- NPI enumeration date
- January 25, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 654-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark S. Barats practices at Mark Barats MD a Professional Corporation in West Hollywood, California
Dr. Barats' primary practice is Mark Barats MD a Professional Corporation, at 948 N Fairfax Ave, West Hollywood, CA 90046 in Los Angeles County. The practice phone is (323) 654-2020.
- Mark Barats MD a Professional Corporation948 N Fairfax Ave, West Hollywood, CA 90046 · Los Angeles CountyPhone(323) 654-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark S. Barats is affiliated with 9 sites of care and 2 medical groups
Dr. Barats' primary practice is Mark Barats MD a Professional Corporation in West Hollywood, California. Dr. Barats is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Mark Barats, MD. Dmand AI also links Dr. Barats to 1 more hospital, 5 home health agencies, 1 group practice or clinic and 1 medical group, 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. Mark S. Barats' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barats practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mark Barats MD a Professional Corporation | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark S. Barats is one of 1,401 nephrologists in California
Nephrology is Dr. Barats' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Barats' licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists chronic anemia, chronic kidney disease, fluid and electrolyte imbalances, gout and hypercalcemia among the conditions Dr. Barats treats.
Nephrologists near Dr. Barats
Counts of nephrologists 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 S. Barats billed Medicare for 20,553 services in 2024
CMS data shows 20,553 Medicare services from Dr. Barats across 37 procedure codes in 2024, for 731 Medicare patients. Medicare paid $786,240 for them. Every service was in an office.
Dr. Barats' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,8192024: 7,081289%
- Tests and treatments
- 2023: 5,9392024: 4,19929%
- Office and hospital visits
- 2023: 4,3812024: 4,1296%
- Lab and pathology
- 2023: 2,0772024: 2,32012%
- Other services
- 2023: 1,0762024: 1,28720%
- Surgery
- 2023: 1,0822024: 1,1769%
- Imaging
- 2023: 3552024: 3612%
Dr. Barats compared with the California median for nephrologists, 2024
- Dr. Barats
- California median
- Medicare services
- 20,553vs 1,08419.0 times
- Medicare patients
- 731vs 3072.4 times
- Part D claims
- 58,666vs 95561.4 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Barats' 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. Barats?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barats and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark S. Barats treated 731 Medicare patients in 2024, average age 79
CMS counts 731 Medicare patients who saw Dr. Barats in 2024. The largest group is 75 to 84, with 264 patients. 75% of them have arthritis, and 75% have high blood pressure. 84% are also on Medicaid. Their average risk score is 1.80, 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. Barats' median patient age at 79, with 66% women.
Dr. Barats' Medicare patients by age, 2024
Dr. Barats' Medicare patients by sex, 2024
- Women46864%
- Men26336%
Chronic conditions among Dr. Barats' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes70%
- Ischemic heart disease64%
- Chronic kidney disease56%
- Mood disorders56%
- Depression53%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barats' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark S. Barats wrote 59,388 Medicare Part D claims in 2024
In 2024, Dr. Barats wrote 59,388 Medicare Part D claims for 716 patients. 75% of them were for generic drugs. CMS names the drug for 58,666 of them, across 403 drugs with 11 or more claims each, at $14,389,807 in total drug cost. In 2023, CMS named 58,091 claims across 418 drugs.
Dr. Barats' Part D claims by kind of drug, 2024
- Generic44,462 claims75%
- Brand-name14,454 claims24%
- Other472 claims1%
Dr. Barats' 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. Barats' Part D claims, 2024
- Opioids1%588 of 59,388 claims
- Antibiotics1%745 of 59,388 claims
- Antipsychotics, patients 65 and over1%325 of 59,388 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: 58,0912024: 58,6661%
Drugs named by CMS: 403 in 2024, 418 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. Mark S. Barats scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Barats for performance year 2024, reported individually. Dr. Barats accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Barats' MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark S. Barats has 1 publication on record
Dmand AI links 1 paper to Dr. Barats.
Recent publications by Dr. Barats
See who Dr. Barats researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barats works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark S. Barats received $61,129 in industry payments from 2016 to 2025
CMS Open Payments shows 2,308 general payments to Dr. Barats from 90 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 66% of the total. Allergan Inc. paid the most, $15,153.
General payments to Dr. Barats by program year, 2016 to 2025
General payments to Dr. Barats by kind, 2016 to 2025
- Food and beverage$40,43466%
- Speaker and faculty fees$12,17020%
- Honoraria$4,2007%
- Travel and lodging$3,4166%
- Other$9091%
Companies that paid Dr. Barats the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark S. Barats graduated from Latvian Medical Academy
Dr. Barats graduated from Latvian Medical Academy in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Mark S. Barats accepts plans from 6 insurance carriers
Dr. Barats is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Barats accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark S. Barats'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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 S. Barats
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 S. Barats' NPI number?
Dr. Mark S. Barats' NPI number is 1720134695. It was assigned on January 25, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark S. Barats?
Dr. Mark S. Barats is a nephrologist in West Hollywood, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Mark S. Barats practice?
Dr. Barats practices at 948 N Fairfax Ave, West Hollywood, CA 90046. Dr. Barats' primary practice is Mark Barats MD a Professional Corporation in West Hollywood, California. Dmand AI also links Dr. Barats to 1 hospital, 5 home health agencies, 1 group practice or clinic and 1 medical group.
What is Dr. Mark S. Barats' office phone number?
The practice phone on file for Dr. Barats is (323) 654-2020.
What is Dr. Mark S. Barats' medical license number?
Dr. Barats holds California license A56228, one of the licenses on file in 2 states.
Which states has Dr. Mark S. Barats been licensed in?
Dmand AI has state licenses on file for Dr. Barats in California (1996 to 2026) and Michigan (1996 to 2003).
Which hospitals is Dr. Mark S. Barats affiliated with?
Dr. Barats is affiliated with Cedars-Sinai Medical Center. Dmand AI links Dr. Barats to 1 more hospital.
What medical group is Dr. Mark S. Barats part of?
Dr. Barats is linked to Mark Barats, MD. Dmand AI links Dr. Barats to 1 more medical group.
Does Dr. Mark S. Barats accept Medicare?
Yes. CMS data shows Dr. Barats billed Medicare for 20,553 services in 2024, and Dr. Barats accepts Medicare assignment.
What is Dr. Mark S. Barats' MIPS score?
Dr. Barats' MIPS final score for performance year 2024 is 100 out of 100, reported individually.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Mark S. Barats see?
CMS counts 731 Medicare patients who saw Dr. Barats in 2024, with an average age of 79.
What services does Dr. Mark S. Barats bill to Medicare?
In 2024, Dr. Barats' most billed Medicare services were injected or infused drug (J1306), lab and pathology test (81002) and infusion or chemotherapy administration (96366).
Where did Dr. Mark S. Barats go to medical school?
Dr. Barats graduated from Latvian Medical Academy in 1984.
What drugs does Dr. Mark S. Barats prescribe most?
In 2024 Medicare Part D data, Dr. Barats' most prescribed drugs by claims were Diclofenac Sodium, Febuxostat and Rosuvastatin Calcium.
Has Dr. Mark S. Barats received payments from drug or device companies?
CMS Open Payments shows $61,129 in general payments to Dr. Barats from 90 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Mark S. Barats been practicing?
Dr. Barats graduated from medical school in 1984, 42 years ago.
Does Dr. Mark S. Barats do research?
Dmand AI links 1 publication to Dr. Barats.
What insurance does Dr. Mark S. Barats accept?
Dr. Barats is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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