NPPES file of Aug 9, 2026

Nadeen Hosein, M.D.

Endocrinology, Diabetes & Metabolism Physician · San Diego, CA

Nadeen Hosein, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Diego, California, and NPI 1912051715, issued on Jan 22, 2007. Check the license (California A113255, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912051715
Name
Nadeen Hosein
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
A113255 CA
Self-reported in NPPES; status is on the state search
Practice location
4077 Fifth Ave, San Diego, CA 92103
Phone
(619) 260-7092
Enumerated
Jan 22, 2007
Record last updated
Dec 29, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(619) 260-7305
Medicare enrollment
Enrolled (PECOS I20110525000584); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4077 Fifth Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Merna AbdouStudent in an Organized Health Care Education/Training Program1134758279
  2. Khalid Abdullah, MDInternal Medicine Physician1205462264
  3. Arash Abiri, MD, PHDStudent in an Organized Health Care Education/Training Program1013858505
  4. Buraq Al Ghaieb, MDHospitalist Physician1831891712
  5. Noorhan Amani, MDStudent in an Organized Health Care Education/Training Program1922946755
  6. William Anapoell, MDHospitalist Physician1982631289

Verify Nadeen Hosein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A113255
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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96% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

108 Medicare Part D claims for 12 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.

  1. Nadeen Hosein108
  2. Specialty average2,630

Most prescribed

  1. Jardiance24 claims
  2. Levothyroxine Sodium14 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.

Bills Medicare through 2 group practices

  1. ON Call Specialists Medical Group OF San Diego IncSan Diego, CA
  2. Scripps Mercy Physicians Cardiology Medical CorporationSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nadeen Hosein among 1,131 endocrinology, diabetes & metabolism physician records in California

Nadeen Hosein, M.D. 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 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 42% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2004 · median 2003 among the 779 with a school on file
  • Record last updated2016 · 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.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Suvesh Chandiok, MDSan Diego, CA 921031235112608
  2. Edward Chao, DOSan Diego, CA 921031932298122
  3. Wolfgang Dillman, M.D.San Diego, CA 921031386675445
  4. Chris Guerin, M.D.San Diego, CA 921031275648875
  5. Kelli Karches, M.D., MPHSan Diego, CA 921031891997631
  6. Kristen Kulasa, M.D.San Diego, CA 921031932324175
  7. Derek Mafong, M.D.San Diego, CA 921031699781633
  8. Karen McCowen, M.D.San Diego, CA 921031972541274

Common questions

What is Nadeen Hosein, M.D.'s NPI number?

Nadeen Hosein, M.D.'s National Provider Identifier (NPI) is 1912051715, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nadeen Hosein, M.D. located?

The NPPES record lists a practice address at 4077 Fifth Ave, San Diego, CA, 92103. Phone: (619) 260-7092. Providers update this record themselves, so call before visiting.

How can I verify Nadeen Hosein, M.D.'s license?

NPPES lists California license number A113255, 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 Nadeen Hosein, M.D. prescribe under Medicare Part D?

In 2024, Nadeen Hosein, M.D. had 108 Medicare Part D claims for 12 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.