NPPES file of Aug 9, 2026

Hugo L. Paz Y Mar, M.D.

Critical Care Medicine (Internal Medicine) Physician · Orange, CA

Hugo L. Paz Y Mar, M.D. is a critical care medicine (internal medicine) physician with a practice address in Orange, California, and NPI 1528231081, issued on Apr 4, 2008. Check the license (California A162203, 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
1528231081
Name
Hugo L. Paz Y Mar
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
A162203 CA
35.096819 OH
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 880-7812
Enumerated
Apr 4, 2008
Record last updated
Mar 26, 2025
Medicare enrollment
Enrolled (PECOS I20191015001707); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Hugo L. Paz Y Mar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A162203
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

273 Medicare Part D claims for 63 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Hugo Paz Y Mar273
  2. Specialty average696

Most prescribed

  1. Albuterol Sulfate Hfa43 claims
  2. Prednisone33 claims
  3. Advair Hfa21 claims
  4. Trelegy Ellipta17 claims
  5. Eszopiclone16 claims
  6. Breo Ellipta14 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 one group practice

  1. UC RegentsOrange, CA

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

Hugo L. Paz Y Mar among 723 critical care medicine (internal medicine) physician records in California

Hugo L. Paz Y Mar, M.D. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.

  • NPI issued2008 · 54% of these records are older, 41% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2004 · median 2005 among the 559 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Adithya Cattamanchi, MDOrange, CA 928681336106871
  2. Lillian Chow, MDOrange, CA 928681972778520
  3. Amir Ghiassi, M.D.Orange, CA 928681518983899
  4. Shahid Hayat, M.D.Orange, CA 928681316047913
  5. Steven Leven, MDOrange, CA 928681538166780
  6. Reza Mina-Araghi, MDOrange, CA 928681699785279
  7. Joseph Preston, M.D.Orange, CA 928681457329674
  8. Sudhir Rajan, M.D.Orange, CA 928681396961249

Common questions

What is Hugo L. Paz Y Mar, M.D.'s NPI number?

Hugo L. Paz Y Mar, M.D.'s National Provider Identifier (NPI) is 1528231081, issued on Apr 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Hugo L. Paz Y Mar, M.D. located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 880-7812. Providers update this record themselves, so call before visiting.

How can I verify Hugo L. Paz Y Mar, M.D.'s license?

NPPES lists California license number A162203, 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 Hugo L. Paz Y Mar, M.D. prescribe under Medicare Part D?

In 2024, Hugo L. Paz Y Mar, M.D. had 273 Medicare Part D claims for 63 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.