Eric Mao, M.D.
Gastroenterology Physician · Sacramento, CA
Eric Mao, M.D. is a gastroenterology physician with a practice address in Sacramento, California, and NPI 1043503295, issued on May 20, 2011. Check the license (California A147641, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Mao
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- A147641 CA
MD14655 RI
Self-reported in NPPES; status is on the state search - Practice location
- 3160 Folsom Blvd Ste 3500, Sacramento, CA 95816
- Phone
- (916) 734-8616
- Enumerated
- May 20, 2011
- Record last updated
- Jan 31, 2022
- Fax
- (916) 451-2024
- Medicare enrollment
- Enrolled (PECOS I20170720002555); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 3160 Folsom Blvd Ste 3500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hisham Hussan, M.D.Gastroenterology Physician1801044789
- Yesenia Ramos, MDGastroenterology Physician1326500679
- Kristen Wellington, M.D.Anesthesiology Physician1003250002
Verify Eric Mao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147641Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average gastroenterology physician in 2024
706 Medicare Part D claims for 169 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Stelara125 claims
- Rinvoq67 claims
- Skyrizi On-Body50 claims
- Humira(Cf) Pen46 claims
- Mesalamine46 claims
- Humira Pen43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $117.45
1 payment: food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Regents OF The Univ OF CASacramento, CA
- Regents OF The University OF CaliforniaFolsom, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Mao among 2,140 gastroenterology physician records in California
Eric Mao, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2002 among the 1,538 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Sacramento → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Renee Debose, MDSacramento, CA 958161780772897
- Serag Dredar, M.D.Sacramento, CA 958161922217637
- Earl Gear, M.D.Sacramento, CA 958161780795203
- Hisham Hussan, M.D.Sacramento, CA 958161801044789
- Altaf Jan, M.D.Sacramento, CA 958161922072404
- Ashwani Kapoor, MDSacramento, CA 958161033370788
- Abdul Khaleq, MDSacramento, CA 958161558457960
- Rana Khan, M.D.Sacramento, CA 958161346464765
Common questions
What is Eric Mao, M.D.'s NPI number?
Eric Mao, M.D.'s National Provider Identifier (NPI) is 1043503295, issued on May 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Eric Mao, M.D. located?
The NPPES record lists a practice address at 3160 Folsom Blvd Ste 3500, Sacramento, CA, 95816. Phone: (916) 734-8616. Providers update this record themselves, so call before visiting.
How can I verify Eric Mao, M.D.'s license?
NPPES lists California license number A147641, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eric Mao, M.D. prescribe under Medicare Part D?
In 2024, Eric Mao, M.D. had 706 Medicare Part D claims for 169 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.