Nathaniel B. Ngo, MD
Obstetrics & Gynecology Physician · Woodland, CA
Nathaniel B. Ngo, MD is an obstetrics & gynecology physician with a practice address in Woodland, California, and NPI 1497913404, issued on May 27, 2008. Check the license (California C148577, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathaniel B. Ngo
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- C148577 CA
MD2012-0180 NM
Self-reported in NPPES; status is on the state search - Practice location
- 1321 Cottonwood St FL 3, Woodland, CA 95695
- Phone
- (530) 668-2600
- Enumerated
- May 27, 2008
- Record last updated
- Jul 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (530) 661-2410
- Medicare enrollment
- Enrolled (PECOS I20170710001178); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2008
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1321 Cottonwood St FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Glass, M.D.Urology Physician1992021554
- Carolyn Merkouris, MDSpecialist1174503395
- Emese Parker, NPObstetrics & Gynecology Nurse Practitioner1508196379
- Lorenzo Rossaro, MDGastroenterology Physician1750368163
- Rafiq Sheikh, MDGastroenterology Physician1699853325
- Natasha Simon, PA-CPhysician Assistant1508535485
Verify Nathaniel B. Ngo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C148577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
131 Medicare Part D claims for 59 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Estradiol36 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel B. Ngo among 5,088 obstetrics & gynecology physician records in California
Nathaniel B. Ngo, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 62% of them.
- NPI issued2008 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2008 · median 2004 among the 2,700 with a school on file
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Woodland → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Rebecca Arthur, M.DWoodland, CA 956951619174844
- Jay Curkendall, MDWoodland, CA 956951891991477
- Alton Curtis, MDWoodland, CA 956951366462095
- Cathy Jang, MDWoodland, CA 956951750306718
- Peter Koch, M.D.Woodland, CA 956951386664928
- James McGibbon, M.D.Woodland, CA 956951588848329
- Joahnna Padilla, MDWoodland, CA 956951174545370
- My-Le To, D.O.Woodland, CA 956951265621197
Common questions
What is Nathaniel B. Ngo, MD's NPI number?
Nathaniel B. Ngo, MD's National Provider Identifier (NPI) is 1497913404, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel B. Ngo, MD located?
The NPPES record lists a practice address at 1321 Cottonwood St FL 3, Woodland, CA, 95695. Phone: (530) 668-2600. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel B. Ngo, MD's license?
NPPES lists California license number C148577, 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 Nathaniel B. Ngo, MD prescribe under Medicare Part D?
In 2024, Nathaniel B. Ngo, MD had 131 Medicare Part D claims for 59 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Nathaniel B. Ngo, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.