NPPES file of Aug 9, 2026

Paul A. Sieving, MD

Retina Specialist (Ophthalmology) Physician · Sacramento, CA

Paul A. Sieving, MD is a retina specialist (ophthalmology) physician with a practice address in Sacramento, California, and NPI 1275175788, issued on Oct 16, 2019. Check the license (California G47797, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275175788
Name
Paul A. Sieving
Credential
MD
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License number
G47797 CA
Self-reported in NPPES; status is on the state search
Practice location
4860 Y St Ste 2400, Sacramento, CA 95817
Phone
(916) 734-6602
Enumerated
Oct 16, 2019
Record last updated
Oct 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(916) 734-6992
Medicare enrollment
Enrolled (PECOS I20201005002193); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1978
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 4860 Y St Ste 2400

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

  1. Aparna Ajjarapu, MDStudent in an Organized Health Care Education/Training Program1962253070
  2. James Brandt, M.D.Ophthalmology Physician1578544136
  3. Evan Chang, MDOphthalmology Physician1457856759
  4. Nicholas Chartrand, MDStudent in an Organized Health Care Education/Training Program1912712696
  5. Andrew ChenStudent in an Organized Health Care Education/Training Program1023694981
  6. David Chu, MDOphthalmology Physician1427190578

Verify Paul A. Sieving in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G47797
    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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Bills Medicare through one group practice

  1. Regents OF The Univ OF CASacramento, CA

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

Paul A. Sieving among 205 retina specialist (ophthalmology) physician records in California

Paul A. Sieving, MD is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 7% newer
  • In a Medicare fileYes · 98% of these records are
  • In the CMS Doctors and Clinicians fileYes · 92% of these records are
  • Graduated1978 · median 2007 among the 189 with a school on file
  • Record last updated2019 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in California

There are 205 retina specialist (ophthalmology) physician records in California.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Samuel FeldmanSacramento, CA 958171417443045
  2. Samuel Kushner LenhoffSacramento, CA 958171134709173
  3. Neesurg MehtaSacramento, CA 958171740643097
  4. Kareem Moussa, MDSacramento, CA 958171396088605
  5. Glenn Yiu, MD, PHDSacramento, CA 958171730348921
  6. Margaret Chang, M.D.Sacramento, CA 958191477504405
  7. Robert Equi, M.D.Sacramento, CA 958191497864664
  8. Arun Patel, M.D.Sacramento, CA 958191164531430

Common questions

What is Paul A. Sieving, MD's NPI number?

Paul A. Sieving, MD's National Provider Identifier (NPI) is 1275175788, issued on Oct 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Paul A. Sieving, MD located?

The NPPES record lists a practice address at 4860 Y St Ste 2400, Sacramento, CA, 95817. Phone: (916) 734-6602. Providers update this record themselves, so call before visiting.

How can I verify Paul A. Sieving, MD's license?

NPPES lists California license number G47797, 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.

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.