Katayoun Lotfi, MD
Endocrinology, Diabetes & Metabolism Physician · Mountain View, CA
Katayoun Lotfi, MD is an endocrinology, diabetes & metabolism physician with a practice address in Mountain View, California, and NPI 1619288685, issued on Jun 24, 2010. Check the license (California A134702, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katayoun Lotfi
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A134702 CA
Self-reported in NPPES; status is on the state search - Practice location
- 701 E EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 934-7500
- Enumerated
- Jun 24, 2010
- Record last updated
- Dec 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170912003131); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 701 E EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katayoun Lotfi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
633 Medicare Part D claims for 102 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of claims.
Most prescribed
- Ozempic210 claims
- Mounjaro132 claims
- Topiramate39 claims
- Metformin Hcl Er29 claims
- Wegovy28 claims
- Atorvastatin Calcium15 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: $93.62
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katayoun Lotfi among 1,131 endocrinology, diabetes & metabolism physician records in California
Katayoun Lotfi, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 68% of them.
- NPI issued2010 · 68% of these records are older, 28% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2010 · median 2003 among the 779 with a school on file
- Record last updated2018 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Mountain View → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sidra Azim, M.D.Mountain View, CA 940401043598378
- Eva Balint, M.D.Mountain View, CA 940401669578951
- Lynn Bennion, M.D.Mountain View, CA 940401235181728
- Leonard Doberne, M.D.Mountain View, CA 940401558447847
- Soo Eng, MDMountain View, CA 940401316024920
- Michael Greenfield, M.D.Mountain View, CA 940401295873685
- Todd Kaye, MDMountain View, CA 940401295787646
- Linda Membreno, MDMountain View, CA 940401740231919
Common questions
What is Katayoun Lotfi, MD's NPI number?
Katayoun Lotfi, MD's National Provider Identifier (NPI) is 1619288685, issued on Jun 24, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Katayoun Lotfi, MD located?
The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7500. Providers update this record themselves, so call before visiting.
How can I verify Katayoun Lotfi, MD's license?
NPPES lists California license number A134702, 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 Katayoun Lotfi, MD prescribe under Medicare Part D?
In 2024, Katayoun Lotfi, MD had 633 Medicare Part D claims for 102 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.