Dr. Siamak Tabib, MD
- Medicare services, 2024
- 617
- Medicare patients, 2024
- 206
- Part D claims, 2024
- 588
- Hospital affiliations
- 1
- Industry payments
- $16,753
- Practice address
- 8631 W 3rd St, Los Angeles, CA 90048
- Practice phone
- Call (310) 890-2855
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kapil Gupta MD a Professional Corporation
Los Angeles, California
Find Dr. Tabib'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. Siamak Tabib is a gastroenterologist in Los Angeles, California
Dr. Tabib practices at Kapil Gupta MD a Professional Corporation in Los Angeles, California.
Dr. Tabib's NPI, 1063555845, was assigned on February 14, 2007. Dr. Tabib graduated from David Geffen School of Medicine at UCLA in 1997. Dr. Tabib holds California license A66169.
- NPI
- 1063555845NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537109921
- NPI enumeration date
- February 14, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 890-2855
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Siamak Tabib practices at Kapil Gupta MD a Professional Corporation in Los Angeles, California
Dr. Tabib's primary practice is Kapil Gupta MD a Professional Corporation, at 8631 W 3rd St, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 890-2855.
- Kapil Gupta MD a Professional Corporation8631 W 3rd St, Los Angeles, CA 90048 · Los Angeles CountyPhone(310) 890-2855
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Siamak Tabib is affiliated with 4 sites of care and 2 medical groups
Dr. Tabib's primary practice is Kapil Gupta MD a Professional Corporation in Los Angeles, California. Dr. Tabib is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Siamak Tabib MD Inc. Dmand AI also links Dr. Tabib to 2 more group practices and clinics 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. Siamak Tabib's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tabib practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kapil Gupta MD a Professional Corporation | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Siamak Tabib is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Tabib's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Tabib is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Tabib is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastroduodenitis, gastrointestinal bleeding and hemorrhoids among the conditions Dr. Tabib treats.
Gastroenterologists near Dr. Tabib
Counts of gastroenterologists 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. Siamak Tabib billed Medicare for 617 services in 2024
CMS data shows 617 Medicare services from Dr. Tabib across 7 procedure codes in 2024, for 206 Medicare patients. Medicare paid $60,340 for them.
Dr. Tabib's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6482024: 45530%
- Surgery
- 2023: 3372024: 16252%
Where Dr. Tabib's Medicare services took place, 2024
- In an office45574%
- In a facility16226%
Dr. Tabib compared with the California median for gastroenterologists, 2024
- Dr. Tabib
- California median
- Medicare services
- 617vs 5865% above
- Medicare patients
- 206vs 30232% below
- Part D claims
- 491vs 38029% above
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Tabib'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. Tabib?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tabib and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Siamak Tabib treated 206 Medicare patients in 2024, average age 75
CMS counts 206 Medicare patients who saw Dr. Tabib in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tabib's median patient age at 63, with 51% women.
Dr. Tabib's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tabib's Medicare patients by sex, 2024
- Women11556%
- Men9144%
Chronic conditions among Dr. Tabib's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease50%
- Diabetes40%
- Osteoporosis32%
- Anxiety26%
- Mood disorders24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tabib's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Siamak Tabib wrote 588 Medicare Part D claims in 2024
In 2024, Dr. Tabib wrote 588 Medicare Part D claims for 157 patients. 84% of them were for generic drugs. CMS names the drug for 491 of them, across 12 drugs with 11 or more claims each, at $153,030 in total drug cost. In 2023, CMS named 515 claims across 12 drugs.
Dr. Tabib's Part D claims by kind of drug, 2024
- Generic491 claims84%
- Brand-name97 claims16%
Dr. Tabib'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. Tabib's Part D claims, 2024
- Antibiotics4%21 of 588 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: 5152024: 4915%
Drugs named by CMS: 12 in 2024, 12 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. Siamak Tabib ranks in the 78th percentile for colonoscopy in Medicare
Dr. Tabib accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 93 procedures of colonoscopy by Dr. Tabib, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Tabib ranks in Medicare procedure volume
- Colonoscopy
- 78th percentile93 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 72nd percentile80 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Siamak Tabib received $16,753 in industry payments from 2016 to 2025
CMS Open Payments shows 782 general payments to Dr. Tabib from 48 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Abbvie Inc. paid the most, $4,177.
General payments to Dr. Tabib by program year, 2016 to 2025
General payments to Dr. Tabib by kind, 2016 to 2025
- Food and beverage$14,49287%
- Travel and lodging$1,2628%
- Consulting fees$7244%
- Education$1791%
- Other$961%
Companies that paid Dr. Tabib 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. Siamak Tabib has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Tabib, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Tabib
- 2012
- CMS Stage 1 EHR
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Siamak Tabib graduated from David Geffen School of Medicine at UCLA
Dr. Tabib graduated from David Geffen School of Medicine at UCLA in 1997. Dr. Tabib is a member of ACG.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Siamak Tabib accepts plans from 6 insurance carriers
Dr. Tabib is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Elevance
Plan types Dr. Tabib accepts, by number of carriers
- Medicare5
- PPO4
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Siamak Tabib'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) |
| 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. Siamak Tabib
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. Siamak Tabib's NPI number?
Dr. Siamak Tabib's NPI number is 1063555845. It was assigned on February 14, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Siamak Tabib?
Dr. Siamak Tabib is a gastroenterologist in Los Angeles, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Siamak Tabib practice?
Dr. Tabib practices at 8631 W 3rd St, Los Angeles, CA 90048. Dr. Tabib's primary practice is Kapil Gupta MD a Professional Corporation in Los Angeles, California. Dmand AI also links Dr. Tabib to 2 group practices and clinics and 1 medical group.
What is Dr. Siamak Tabib's office phone number?
The practice phone on file for Dr. Tabib is (310) 890-2855.
What is Dr. Siamak Tabib's medical license number?
Dr. Tabib holds California license A66169.
Which hospitals is Dr. Siamak Tabib affiliated with?
Dr. Tabib is affiliated with Cedars-Sinai Medical Center.
What medical group is Dr. Siamak Tabib part of?
Dr. Tabib is linked to Siamak Tabib MD Inc. Dmand AI links Dr. Tabib to 1 more medical group.
Does Dr. Siamak Tabib accept Medicare?
Yes. CMS data shows Dr. Tabib billed Medicare for 617 services in 2024, and Dr. Tabib accepts Medicare assignment.
How many Medicare patients does Dr. Siamak Tabib see?
CMS counts 206 Medicare patients who saw Dr. Tabib in 2024, with an average age of 75.
Is Dr. Siamak Tabib board certified?
Yes. Dr. Tabib is board certified in gastroenterology by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Siamak Tabib bill to Medicare?
In 2024, Dr. Tabib's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (43239) and office visit, new patient (99204).
Where did Dr. Siamak Tabib go to medical school?
Dr. Tabib graduated from David Geffen School of Medicine at UCLA in 1997.
What drugs does Dr. Siamak Tabib prescribe most?
In 2024 Medicare Part D data, Dr. Tabib's most prescribed drugs by claims were Famotidine, Omeprazole and Pantoprazole Sodium.
Has Dr. Siamak Tabib received payments from drug or device companies?
CMS Open Payments shows $16,753 in general payments to Dr. Tabib from 48 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Siamak Tabib been practicing?
Dr. Tabib graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Siamak Tabib accept?
Dr. Tabib is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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