Scand J Gastroenterol
Celiac DiseaseIntestinal AbsorptionMalabsorption Syndromes
Dr. Diane Y. Bai, MD
NPI1932145646
- Medicare services, 2024
- 523
- Medicare patients, 2024
- 346
- Part D claims, 2024
- 868
- Publications
- 2
- Industry payments
- $164
- Practice address
- 1112 6th Ave, Tacoma, WA 98405
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Franciscan Digestive Care Associates Tacoma - HOPD
Childrens Hospital outpatient department · Tacoma, Washington
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Dr. Diane Y. Bai is a gastroenterologist in Tacoma, Washington
Dr. Bai practices at Franciscan Digestive Care Associates Tacoma - HOPD in Tacoma, Washington.
Dr. Bai's NPI, 1932145646, was assigned on June 21, 2006. Dr. Bai graduated from UT Southwestern Medical Center in 2000. Dr. Bai holds Washington license MD00049108.
NPI and contact details
- NPI
- 1932145646NPI Registry (opens in a new tab)
- NPI enumeration date
- June 21, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Diane Y. Bai practices at Franciscan Digestive Care Associates Tacoma - HOPD in Tacoma, Washington
Dr. Bai's primary practice is Franciscan Digestive Care Associates Tacoma - HOPD, at 1112 6th Ave, Tacoma, WA 98405.
- Franciscan Digestive Care Associates Tacoma - HOPD1112 6th Ave, Tacoma, WA 98405
Source: Dmand AI Affiliation Data
Dr. Diane Y. Bai is affiliated with 3 sites of care and 2 medical groups
Dr. Bai's primary practice is Franciscan Digestive Care Associates Tacoma - HOPD in Tacoma, Washington. The medical group on file is Franciscan Orthopedics - Silverdale. Dmand AI also links Dr. Bai to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Bai's employer is on file too: a hospital.
Franciscan Digestive Care Associates Tacoma - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Diane Y. Bai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bai practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Franciscan Digestive Care Associates Tacoma - HOPD | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diane Y. Bai is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Bai's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Bai is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Bai's licenses on file in 4 states: Washington, Texas, North Carolina and New York.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
- Texas license
- North Carolina license
- New York license
Clinical focus
Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastroenteritis, gastrointestinal bleeding, hemorrhoids and intestinal diverticulosis among the conditions Dr. Bai treats.
Gastroenterologists near Dr. Bai
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. Diane Y. Bai billed Medicare for 523 services in 2024
CMS data shows 523 Medicare services from Dr. Bai across 11 procedure codes in 2024, for 346 Medicare patients. Medicare paid $51,273 for them.
Medicare services, 2024523
Medicare patients346
Paid by Medicare$51,273
Procedure codes11
Dr. Bai's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2942024: 2911%
- Office and hospital visits
- 2023: 2452024: 22110%
- Other services
- 2023: 182024: 1139%
Where Dr. Bai's Medicare services took place, 2024
- In an office48493%
- In a facility397%
Dr. Bai compared with the Washington median for gastroenterologists, 2024
- Dr. Bai
- Washington median
- Medicare services
- 523vs 35647% above
- Medicare patients
- 346vs 24442% above
- Part D claims
- 725vs 2722.7 times
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Bai'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. Bai?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bai and other gastroenterologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diane Y. Bai treated 346 Medicare patients in 2024, average age 73
CMS counts 346 Medicare patients who saw Dr. Bai in 2024. The largest group is 65 to 74, with 174 patients. 72% of them have high cholesterol, and 63% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bai's median patient age at 66, with 72% women.
Medicare patients, 2024346
Average age73
Average risk score1.01
Also on Medicaid9%
Dr. Bai's Medicare patients by age, 2024
Dr. Bai's Medicare patients by sex, 2024
- Women25674%
- Men9026%
Chronic conditions among Dr. Bai's Medicare patients, 2024
- High cholesterol72%
- High blood pressure63%
- Arthritis46%
- Ischemic heart disease25%
- Diabetes23%
- Osteoporosis23%
- Anxiety21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women72%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diane Y. Bai wrote 868 Medicare Part D claims in 2024
In 2024, Dr. Bai wrote 868 Medicare Part D claims for 387 patients. 85% of them were for generic drugs. CMS names the drug for 725 of them, across 18 drugs with 11 or more claims each, at $37,086 in total drug cost. In 2023, CMS named 904 claims across 22 drugs.
Part D claims, 2024868
Drugs named by CMS18
Total drug cost$37,086
Part D patients387
Dr. Bai's Part D claims by kind of drug, 2024
- Generic736 claims85%
- Brand-name and other132 claims15%
Dr. Bai'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. Bai's Part D claims, 2024
- Antibiotics2%16 of 868 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: 9042024: 72520%
Drugs named by CMS: 18 in 2024, 22 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
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Dr. Diane Y. Bai has 2 publications on record
Dmand AI links 2 papers to Dr. Bai. Dr. Bai's most frequent co-authors are Pardeep S. Brar, MD and Peter H.r. Green, MD.
Papers2
Dr. Bai's most frequent co-authors
Recent publications by Dr. Bai
J Gastroenterol Hepatol
Esophageal pH MonitoringEsophagoscopyEsophagus
See who Dr. Bai researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bai 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. Diane Y. Bai received $164 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Bai from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Nevro Corp. paid the most, $145.
Companies that paid Dr. Bai the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diane Y. Bai has 1 award and honors on record
Dmand AI lists 1 award for Dr. Bai, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Bai
- 2014
- Regional Top Doctor
Source: Dmand AI Professional Profile Data
Dr. Diane Y. Bai graduated from UT Southwestern Medical Center
Dr. Bai graduated from UT Southwestern Medical Center in 2000.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Diane Y. Bai accepts plans from 18 insurance carriers
Dr. Bai is in network with 18 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- HCSC
- Humana
- Kaiser Permanente
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +10 more carriersWith a free account
Plan types Dr. Bai accepts, by number of carriers
- PPO12
- HMO10
- Medicare10
- EPO5
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Diane Y. Bai'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 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) |
| 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. Diane Y. Bai
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. Diane Y. Bai's NPI number?
Dr. Diane Y. Bai's NPI number is 1932145646. It was assigned on June 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diane Y. Bai?
Dr. Diane Y. Bai is a gastroenterologist in Tacoma, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Diane Y. Bai practice?
Dr. Bai practices at 1112 6th Ave, Tacoma, WA 98405. Dr. Bai's primary practice is Franciscan Digestive Care Associates Tacoma - HOPD in Tacoma, Washington. Dmand AI also links Dr. Bai to 2 group practices and clinics and 1 medical group.
What is Dr. Diane Y. Bai's medical license number?
Dr. Bai holds Washington license MD00049108, one of the licenses on file in 4 states.
Which states has Dr. Diane Y. Bai been licensed in?
Dmand AI has state licenses on file for Dr. Bai in Washington (2007 to 2026), Texas (2006 to 2009), North Carolina (2003 to 2006) and New York (2002 to 2004).
What medical group is Dr. Diane Y. Bai part of?
Dr. Bai is linked to Franciscan Orthopedics - Silverdale. Dmand AI links Dr. Bai to 1 more medical group.
Does Dr. Diane Y. Bai accept Medicare?
Yes. CMS data shows Dr. Bai billed Medicare for 523 services in 2024.
How many Medicare patients does Dr. Diane Y. Bai see?
CMS counts 346 Medicare patients who saw Dr. Bai in 2024, with an average age of 73.
Is Dr. Diane Y. Bai board certified?
Yes. Dr. Bai is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Diane Y. Bai bill to Medicare?
In 2024, Dr. Bai's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (45385).
Show 7 more questionsShow fewer questions
Where did Dr. Diane Y. Bai go to medical school?
Dr. Bai graduated from UT Southwestern Medical Center in 2000.
What drugs does Dr. Diane Y. Bai prescribe most?
In 2024 Medicare Part D data, Dr. Bai's most prescribed drugs by claims were Omeprazole, Gavilyte-G and Loperamide.
Has Dr. Diane Y. Bai received payments from drug or device companies?
CMS Open Payments shows $164 in general payments to Dr. Bai from 2 companies from 2016 to 2016. The largest total came from Nevro Corp.
How long has Dr. Diane Y. Bai been practicing?
Dr. Bai graduated from medical school in 2000, 26 years ago.
Does Dr. Diane Y. Bai do research?
Dmand AI links 2 publications to Dr. Bai.
Who does Dr. Diane Y. Bai publish with?
Dr. Bai's most frequent co-authors are Pardeep S. Brar, MD (1 shared paper) and Peter H.r. Green, MD (1 shared paper).
What insurance does Dr. Diane Y. Bai accept?
Dr. Bai is in network with 18 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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