J Gastroenterol Hepatol
Disease ProgressionElectric ImpedanceEsophageal pH Monitoring
Dr. Mariel Bailey, MD
NPI1710415435PAC ID3072866177
- Part D claims, 2024
- 116
- Publications
- 3
- Hospital affiliations
- 2
- Industry payments
- $222
- Medical group
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Bailey'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. Mariel Bailey is an internist in Richmond, California
Dr. Bailey practices at Richmond Medical Center in Richmond, California.
Dr. Bailey's NPI, 1710415435, was assigned on May 25, 2017. Dr. Bailey graduated from David Geffen School of Medicine at UCLA in 2017. Dr. Bailey holds California license A195655.
NPI and contact details
- NPI
- 1710415435NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072866177
- NPI enumeration date
- May 25, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mariel Bailey practices at Richmond Medical Center in Richmond, California
Dr. Bailey's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mariel Bailey is affiliated with 3 sites of care and 1 medical group
Dr. Bailey's primary practice is Richmond Medical Center in Richmond, California. Dr. Bailey is also affiliated with Walnut Creek Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Bailey to 1 more hospital, named with a free account.
Richmond Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mariel Bailey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bailey practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mariel Bailey is one of 16,751 internists in California
Internal medicine is Dr. Bailey's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bailey is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Bailey's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Massachusetts license
Internists near Dr. Bailey
Counts of internists 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. Mariel Bailey's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Bailey's median patient age at 57, with 61% women.
Dr. Bailey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Mariel Bailey wrote 116 Medicare Part D claims in 2024
In 2024, Dr. Bailey wrote 116 Medicare Part D claims for 48 patients. 75% of them were for generic drugs. CMS names the drug for 32 of them, across 2 drugs with 11 or more claims each, at $4,556 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Part D claims, 2024116
Drugs named by CMS2
Total drug cost$4,556
Part D patients48
Dr. Bailey's Part D claims by kind of drug, 2024
- Generic87 claims75%
- Brand-name29 claims25%
Dr. Bailey'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 122024: 32167%
Drugs named by CMS: 2 in 2024, 1 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. Mariel Bailey offers telehealth to Medicare patients
Dr. Bailey accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Bailey as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Mariel Bailey has 3 publications on record
Dmand AI links 3 papers to Dr. Bailey in 2023. The most frequent topics are Electric Impedance, Esophageal pH Monitoring and Gastroesophageal Reflux. Dr. Bailey's most frequent co-authors are Lawrence Francis Borges, MD, Walter Wai-Yip Chan, MD and Sravanya Gavini, MD.
Papers3
Topics Dr. Bailey writes about most
- Electric Impedance
- Esophageal pH Monitoring
- Gastroesophageal Reflux
- Hydrogen-Ion Concentration
- Idiopathic Pulmonary Fibrosis
Dr. Bailey's most frequent co-authors
- Lawrence Francis Borges, MD2 shared papers
- Walter Wai-Yip Chan, MD2 shared papers
- Sravanya Gavini, MD2 shared papers
Recent publications by Dr. Bailey
Adrenal Gland NeoplasmsAntibodies, MonoclonalAntibodies, Monoclonal, Humanized
Am J Gastroenterol
BenchmarkingElectric ImpedanceEsophageal pH Monitoring
See who Dr. Bailey researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bailey works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mariel Bailey received $222 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Dr. Bailey from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 62% of the total. Abbvie Inc. paid the most, $138.
General payments to Dr. Bailey by program year, 2023 to 2024
General payments to Dr. Bailey by kind, 2023 to 2024
$222in total
- Food and beverage$13862%
- Education$8438%
Companies that paid Dr. Bailey the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mariel Bailey graduated from David Geffen School of Medicine at UCLA
Dr. Bailey graduated from David Geffen School of Medicine at UCLA in 2017.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mariel Bailey accepts plans from 2 insurance carriers
Dr. Bailey is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Bailey accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mariel Bailey'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Mariel Bailey
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. Mariel Bailey's NPI number?
Dr. Mariel Bailey's NPI number is 1710415435. It was assigned on May 25, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Mariel Bailey?
Dr. Mariel Bailey is an internist in Richmond, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mariel Bailey practice?
Dr. Bailey practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Bailey's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Bailey to 1 hospital.
What is Dr. Mariel Bailey's office phone number?
The practice phone on file for Dr. Bailey is (510) 307-1555.
What is Dr. Mariel Bailey's medical license number?
Dr. Bailey holds California license A195655, one of the licenses on file in 2 states.
Which states has Dr. Mariel Bailey been licensed in?
Dmand AI has state licenses on file for Dr. Bailey in California (2024 to 2026) and Massachusetts (2017 to 2025).
Which hospitals is Dr. Mariel Bailey affiliated with?
Dr. Bailey is affiliated with Walnut Creek Medical Center. Dmand AI links Dr. Bailey to 1 more hospital.
What medical group is Dr. Mariel Bailey part of?
Dr. Bailey is linked to The Permanente Medical Group, Inc.
Does Dr. Mariel Bailey accept Medicare?
Yes. CMS lists Dr. Bailey as accepting Medicare assignment.
Does Dr. Mariel Bailey offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Bailey as offering telehealth services.
Show 8 more questionsShow fewer questions
Is Dr. Mariel Bailey board certified?
Yes. Dr. Bailey is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. Mariel Bailey go to medical school?
Dr. Bailey graduated from David Geffen School of Medicine at UCLA in 2017.
What drugs does Dr. Mariel Bailey prescribe most?
In 2024 Medicare Part D data, Dr. Bailey's most prescribed drugs by claims were Omeprazole and Mesalamine.
Has Dr. Mariel Bailey received payments from drug or device companies?
CMS Open Payments shows $222 in general payments to Dr. Bailey from 2 companies from 2023 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Mariel Bailey been practicing?
Dr. Bailey graduated from medical school in 2017, 9 years ago.
Does Dr. Mariel Bailey do research?
Dmand AI links 3 publications to Dr. Bailey.
Who does Dr. Mariel Bailey publish with?
Dr. Bailey's most frequent co-authors are Lawrence Francis Borges, MD (2 shared papers), Walter Wai-Yip Chan, MD (2 shared papers) and Sravanya Gavini, MD (2 shared papers).
What insurance does Dr. Mariel Bailey accept?
Dr. Bailey is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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