Melissa N. Loja, MD
Vascular Surgery Physician · Fairfield, CA
Melissa N. Loja, MD is a vascular surgery physician with a practice address in Fairfield, California, and NPI 1578826749, issued on Jun 21, 2012. Check the license (California A127991, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Melissa N. Loja
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- A127991 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1860 Pennsylvania Ave Ste 120, Fairfield, CA 94533
- Phone
- (707) 646-4400
- Enumerated
- Jun 21, 2012
- Record last updated
- Jun 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171016002476); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Melissa N. Loja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A127991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average vascular surgery physician in 2024
198 Medicare Part D claims for 76 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 32 claims were for opioids.
Most prescribed
- Clopidogrel53 claims
- Eliquis40 claims
- Hydrocodone-Acetaminophen27 claims
- Atorvastatin Calcium14 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: $41,526.18
41 payments; by number, the most common kind was food and beverage; the largest payer was ShockWave Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 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 3 group practices
- Northbay Health Medical FoundationVacaville, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
- Providence Medical FoundationNapa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
Other vascular surgery physician records in California
- Oliver Aalami, M.D.Stanford, CA1225229024
- Shahram Aarabi, MDOakland, CA1972700458
- Arad Abadi, MDLancaster, CA1730673724
- Ryan Abdul-HaqqWest Hollywood, CA1386087864
- Andrew Abi-Chaker, M.D.Sherman Oaks, CA1528488467
- Ahmed Abou-Zamzam, M.D.Loma Linda, CA1558306795
- Joseph Abu-Dalu, MDLos Angeles, CA1821157587
- Queen Abure, MDSan Francisco, CA1710772074
- Riad Adoumie, M.D.Torrance, CA1467465930
- Massoud Agahi, M.D.Beverly Hills, CA1952367070
Common questions
What is Melissa N. Loja, MD's NPI number?
Melissa N. Loja, MD's National Provider Identifier (NPI) is 1578826749, issued on Jun 21, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Melissa N. Loja, MD located?
The NPPES record lists a practice address at 1860 Pennsylvania Ave Ste 120, Fairfield, CA, 94533. Phone: (707) 646-4400. Providers update this record themselves, so call before visiting.
How can I verify Melissa N. Loja, MD's license?
NPPES lists California license number A127991, 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 Melissa N. Loja, MD prescribe under Medicare Part D?
In 2024, Melissa N. Loja, MD had 198 Medicare Part D claims for 76 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.