Nischita Merla, MD, MPH
Gastroenterology Physician · Upland, CA
Nischita Merla, MD, MPH is a gastroenterology physician with a practice address in Upland, California, and NPI 1629272208, issued on Jun 14, 2007. Check the license (California A119042, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nischita Merla
- Credential
- MD, MPH
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- A119042 CA
BP2-0029547 TX
N4029 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1330 San Bernardino RD Ste L, Upland, CA 91786
- Phone
- (909) 833-7556
- Enumerated
- Jun 14, 2007
- Record last updated
- Sep 17, 2025
- Fax
- (909) 833-9226
- Medicare enrollment
- Enrolled (PECOS I20120124000835); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Verify Nischita Merla in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A119042Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average gastroenterology physician in 2024
829 Medicare Part D claims for 283 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Pantoprazole Sodium166 claims
- Gavilyte-G94 claims
- Linzess75 claims
- Omeprazole73 claims
- Peg-3350 And Electrolytes38 claims
- Sod Sulf-Potass Sulf-Mag Sulf33 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.
The MIPS final score for 2023 (Medicare payment program): 95.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,075.06
44 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, 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 one group practice
- Realm Healthcare IncUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nischita Merla among 2,140 gastroenterology physician records in California
Nischita Merla, MD, MPH 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 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 37% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2002 among the 1,538 with a school on file
- Record last updated2025 · 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 Upland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Basim Abdelkarim, MDUpland, CA 917861932217544
- Chuang Hung, M.D.Upland, CA 917861619049749
- Kevin Jenkins, DOUpland, CA 917861730276163
- Camron Kiafar, D.O.Upland, CA 917861831299254
- John Kim, M.D.Upland, CA 917861548218274
- Mysore Nagaraja, M.D.Upland, CA 917861760451298
- Dwaraknath Reddy, M.D.Upland, CA 917861417964917
- Priyanka YaramadaUpland, CA 917861588008189
Common questions
What is Nischita Merla, MD, MPH's NPI number?
Nischita Merla, MD, MPH's National Provider Identifier (NPI) is 1629272208, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nischita Merla, MD, MPH located?
The NPPES record lists a practice address at 1330 San Bernardino RD Ste L, Upland, CA, 91786. Phone: (909) 833-7556. Providers update this record themselves, so call before visiting.
How can I verify Nischita Merla, MD, MPH's license?
NPPES lists California license number A119042, 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 Nischita Merla, MD, MPH prescribe under Medicare Part D?
In 2024, Nischita Merla, MD, MPH had 829 Medicare Part D claims for 283 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Nischita Merla, MD, MPH's MIPS final score?
The 2023 MIPS final score is 95.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.