Dr. Nihar U. Shah, MD
- Medicare services, 2024
- 462
- Medicare patients, 2024
- 312
- Part D claims, 2024
- 364
- Publications
- 8
- Hospital affiliations
- 4
- Practice address
- 730 Distel Dr, Los Altos, CA 94022
- Practice phone
- Call (650) 331-4662
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Walnut Creek Endoscopy Center LLC
Los Altos, California
Find Dr. Shah'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. Nihar U. Shah is a gastroenterologist in Los Altos, California
Dr. Shah practices at Walnut Creek Endoscopy Center LLC in Los Altos, California.
Dr. Shah's NPI, 1285998609, was assigned on June 29, 2012. Dr. Shah graduated from Terna Medical College in 2007. Dr. Shah holds California license 989517.
- NPI
- 1285998609NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072769413
- NPI enumeration date
- June 29, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 331-4662
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nihar U. Shah practices at Walnut Creek Endoscopy Center LLC in Los Altos, California
Dr. Shah's primary practice is Walnut Creek Endoscopy Center LLC, at 730 Distel Dr, Los Altos, CA 94022 in Santa Clara County. The practice phone is (650) 331-4662.
- Walnut Creek Endoscopy Center LLC730 Distel Dr, Los Altos, CA 94022 · Santa Clara CountyPhone(650) 331-4662
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nihar U. Shah is affiliated with 6 sites of care and 1 medical group
Dr. Shah's primary practice is Walnut Creek Endoscopy Center LLC in Los Altos, California. Dr. Shah is also affiliated with California Pacific Medical Center Van Ness Campus. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Shah to 3 more hospitals 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. Nihar U. Shah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shah practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Walnut Creek Endoscopy Center LLC | 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. Nihar U. Shah is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Shah's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Shah is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Shah's licenses on file in 4 states: California, Kentucky, Pennsylvania and Washington.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Kentucky license
- Pennsylvania license
- Washington license
Clinical focus
Dmand AI lists acid reflux, cirrhosis of the liver, colonoscopy, fatty liver, gastroenteritis, gastrointestinal bleeding, hemorrhoids and irritable bowel syndrome (IBS) among the conditions Dr. Shah treats.
Gastroenterologists near Dr. Shah
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. Nihar U. Shah billed Medicare for 462 services in 2024
CMS data shows 462 Medicare services from Dr. Shah across 9 procedure codes in 2024, for 312 Medicare patients. Medicare paid $52,441 for them.
Dr. Shah's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2922024: 2891%
- Surgery
- 2023: 1122024: 1174%
- Tests and treatments
- 2023: 422024: 5633%
- Other services
- 2023: 342024: 0100%
Where Dr. Shah's Medicare services took place, 2024
- In an office34575%
- In a facility11725%
Dr. Shah compared with the California median for gastroenterologists, 2024
- Dr. Shah
- California median
- Medicare services
- 462vs 58621% below
- Medicare patients
- 312vs 302Close to median
- Part D claims
- 246vs 38035% below
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Shah'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shah and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nihar U. Shah treated 312 Medicare patients in 2024, average age 73
CMS counts 312 Medicare patients who saw Dr. Shah in 2024. The largest group is 65 to 74, with 149 patients. 67% of them have high blood pressure, and 65% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shah's median patient age at 56, with 49% women.
Dr. Shah's Medicare patients by age, 2024
Dr. Shah's Medicare patients by sex, 2024
- Women18459%
- Men12841%
Chronic conditions among Dr. Shah's Medicare patients, 2024
- High blood pressure67%
- High cholesterol65%
- Arthritis46%
- Mood disorders30%
- Chronic kidney disease28%
- Diabetes27%
- Anxiety25%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women49%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nihar U. Shah wrote 364 Medicare Part D claims in 2024
In 2024, Dr. Shah wrote 364 Medicare Part D claims for 164 patients. 79% of them were for generic drugs. CMS names the drug for 246 of them, across 10 drugs with 11 or more claims each, at $68,275 in total drug cost. In 2023, CMS named 196 claims across 7 drugs.
Dr. Shah's Part D claims by kind of drug, 2024
- Generic288 claims79%
- Brand-name76 claims21%
Dr. Shah'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. Shah's Part D claims, 2024
- Antibiotics5%19 of 364 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: 1962024: 24626%
Drugs named by CMS: 10 in 2024, 7 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. Nihar U. Shah ranks in the 67th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Shah accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shah as offering telehealth. CMS counts 61 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Shah, more than 67% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Shah ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 67th percentile61 procedures
- Colonoscopy
- 60th percentile43 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. Nihar U. Shah has 8 publications on record
Dmand AI links 8 papers to Dr. Shah, published from 2013 to 2020. 2013 was the busiest year, with 3. The most frequent topics are Liver. Dr. Shah's most frequent co-authors are Jason Paul Rocha, MD, Thomas Lyman Abell, MD and David M. Aboulafia, MD.
Topics Dr. Shah writes about most
- Liver
Dr. Shah's most frequent co-authors
- Jason Paul Rocha, MD2 shared papers
- Thomas Lyman Abell, MD1 shared paper
- David M. Aboulafia, MD1 shared paper
Recent publications by Dr. Shah
Clin Lymphoma Myeloma Leuk
J Clin Exp Hepatol
Expert Opin Investig Drugs
See who Dr. Shah researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shah works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nihar U. Shah received $60,660 in industry payments from 2016 to 2025
CMS Open Payments shows 169 general payments to Dr. Shah from 27 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 72% of the total. Madrigal Pharmaceuticals paid the most, $50,227.
General payments to Dr. Shah by program year, 2016 to 2025
General payments to Dr. Shah by kind, 2016 to 2025
- Speaker and faculty fees$43,86472%
- Consulting fees$5,94810%
- Food and beverage$5,88010%
- Travel and lodging$4,9698%
Companies that paid Dr. Shah 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. Nihar U. Shah graduated from Terna Medical College
Dr. Shah graduated from Terna Medical College in 2007. Dr. Shah is a member of ACG, AGA and ASGE.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Nihar U. Shah accepts plans from 13 insurance carriers
Dr. Shah is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- AK State Medicaid
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- Cigna
- +5 more carriersWith a free account
Plan types Dr. Shah accepts, by number of carriers
- PPO7
- HMO5
- Medicare4
- POS4
- EPO3
- Medicaid3
Source: Dmand AI Insurance Network Data
Sources for Dr. Nihar U. Shah'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) |
| 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. Nihar U. Shah
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. Nihar U. Shah's NPI number?
Dr. Nihar U. Shah's NPI number is 1285998609. It was assigned on June 29, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Nihar U. Shah?
Dr. Nihar U. Shah is a gastroenterologist in Los Altos, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Nihar U. Shah practice?
Dr. Shah practices at 730 Distel Dr, Los Altos, CA 94022. Dr. Shah's primary practice is Walnut Creek Endoscopy Center LLC in Los Altos, California. Dmand AI also links Dr. Shah to 3 hospitals and 1 group practice or clinic.
What is Dr. Nihar U. Shah's office phone number?
The practice phone on file for Dr. Shah is (650) 331-4662.
What is Dr. Nihar U. Shah's medical license number?
Dr. Shah holds California license 989517, one of the licenses on file in 4 states.
Which states has Dr. Nihar U. Shah been licensed in?
Dmand AI has state licenses on file for Dr. Shah in California (2014 to 2026), Kentucky (2016 to 2019), Pennsylvania (2014 to 2016) and Washington (2012 to 2014).
Which hospitals is Dr. Nihar U. Shah affiliated with?
Dr. Shah is affiliated with California Pacific Medical Center Van Ness Campus. Dmand AI links Dr. Shah to 3 more hospitals.
What medical group is Dr. Nihar U. Shah part of?
Dr. Shah is linked to Palo Alto Foundation Medical Group.
Does Dr. Nihar U. Shah accept Medicare?
Yes. CMS data shows Dr. Shah billed Medicare for 462 services in 2024, and Dr. Shah accepts Medicare assignment.
Does Dr. Nihar U. Shah offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shah as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Nihar U. Shah see?
CMS counts 312 Medicare patients who saw Dr. Shah in 2024, with an average age of 73.
Is Dr. Nihar U. Shah board certified?
Yes. Dr. Shah is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Nihar U. Shah bill to Medicare?
In 2024, Dr. Shah's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and digestive system test (91200).
Where did Dr. Nihar U. Shah go to medical school?
Dr. Shah graduated from Terna Medical College in 2007.
What drugs does Dr. Nihar U. Shah prescribe most?
In 2024 Medicare Part D data, Dr. Shah's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. Nihar U. Shah received payments from drug or device companies?
CMS Open Payments shows $60,660 in general payments to Dr. Shah from 27 companies from 2016 to 2025. The largest total came from Madrigal Pharmaceuticals.
How long has Dr. Nihar U. Shah been practicing?
Dr. Shah graduated from medical school in 2007, 19 years ago.
Does Dr. Nihar U. Shah do research?
Dmand AI links 8 publications to Dr. Shah, published from 2013 to 2020.
Who does Dr. Nihar U. Shah publish with?
Dr. Shah's most frequent co-authors are Jason Paul Rocha, MD (2 shared papers), Thomas Lyman Abell, MD (1 shared paper) and David M. Aboulafia, MD (1 shared paper).
What insurance does Dr. Nihar U. Shah accept?
Dr. Shah is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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