Registry data as of Aug 27, 2026

Nathaniel Howard, MD

Gastroenterology Physician · Oroville, CA

Nathaniel Howard, MD is a gastroenterology physician with a practice address in Oroville, California, and NPI 1558325787, issued on Apr 14, 2006. Check the license (California G54153, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558325787
Name
Nathaniel Howard
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
G54153 CA
Self-reported in NPPES; status is on the state search
Practice location
2721 Olive Hwy, Oroville, CA 95966
Phone
(530) 533-6061
Enumerated
Apr 14, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2721 Olive Hwy

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

  1. Mammen Chandy, M.D.Surgery Physician1689743064
  2. Thomas Mundorff, MDInternal Medicine Physician1154385383
  3. Theresa O' Hair, FNPAcute Care Nurse Practitioner1942467519
  4. Jasveena Rai Dhugga, FNP-CFamily Nurse Practitioner1285347864
  5. Eric Redmer, PHARMDPharmacist1457405243
  6. Roy Shannon, MDInternal Medicine Physician1104880335

Verify Nathaniel Howard in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G54153
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

The practice group's Medicare quality score for 2023: 73.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score36.9
  2. Costout of 100 · 30%57.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Gastroenterology Physician providers in California

There are 1,749 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  4. John Abdulian, M.D.Fresno, CA1437114113
  5. Hussein Abidali, DORancho Cucamonga, CA1205274768
  6. Alaa Abousaif, MDOrange, CA1235124108
  7. Donald Abrahm, M.D.Newport Beach, CA1215022405
  8. Maria Abreu, M.D.West Hollywood, CA1598793374
  9. Safwat Absood, M.D.Modesto, CA1932113891
  10. Ronald Adamany, M.D.Mission Viejo, CA1992780688

Common questions

What is Nathaniel Howard, MD's NPI number?

Nathaniel Howard, MD's National Provider Identifier (NPI) is 1558325787, issued on Apr 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Howard, MD located?

The NPPES record lists a practice address at 2721 Olive Hwy, Oroville, CA, 95966. Phone: (530) 533-6061. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Howard, MD's license?

NPPES lists California license number G54153, 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.

What is Nathaniel Howard, MD's Medicare quality score?

The 2023 MIPS final score is 73.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.