Nicolle Underwood, MD
Obstetrics & Gynecology Physician · Newport Beach, CA
Nicolle Underwood, MD is an obstetrics & gynecology physician with a practice address in Newport Beach, California, and NPI 1881821122, issued on Jun 14, 2009. Check the license (California 145047, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicolle Underwood
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 145047 CA
269054 NY
Self-reported in NPPES; status is on the state search - Practice location
- 500 Superior Avenue, Newport Beach, CA 92663
- Phone
- (949) 644-2722
- Enumerated
- Jun 14, 2009
- Record last updated
- Jan 13, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (949) 760-5438
- Medicare enrollment
- Enrolled (PECOS I20170209001106); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2009
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 500 Superior Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rhonda Flora, M.D.Obstetrics & Gynecology Physician1720160583
- Lisa Karamardian, M.D.Obstetrics & Gynecology Physician1922053644
- Jody Lai, M.D.Obstetrics & Gynecology Physician1750411831
- Julianna Linn, PA-CPhysician Assistant1285826966
- Lisa Worsch, M.D.Obstetrics & Gynecology Physician1851320840
Verify Nicolle Underwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 145047Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
124 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Estradiol33 claims
- Progesterone16 claims
- Estradiol (Twice Weekly)14 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hoag ClinicSan Clemente, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicolle Underwood among 5,088 obstetrics & gynecology physician records in California
Nicolle Underwood, 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 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2009 · 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 Newport Beach → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Richard Agnew, MD OB GYNNewport Beach, CA 926631629089206
- William Clayton, MDNewport Beach, CA 926631366525586
- Bernard Feldman, M.DNewport Beach, CA 926631558380048
- Rhonda Flora, M.D.Newport Beach, CA 926631720160583
- Deborah Grouse, MDNewport Beach, CA 926631669408076
- Chai-Lin Hsu, M.D.Newport Beach, CA 926631336191386
- Lisa Karamardian, M.D.Newport Beach, CA 926631922053644
- Patricia Keresztes-Korber, M.DNewport Beach, CA 926631780616805
Common questions
What is Nicolle Underwood, MD's NPI number?
Nicolle Underwood, MD's National Provider Identifier (NPI) is 1881821122, issued on Jun 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Nicolle Underwood, MD located?
The NPPES record lists a practice address at 500 Superior Avenue, Newport Beach, CA, 92663. Phone: (949) 644-2722. Providers update this record themselves, so call before visiting.
How can I verify Nicolle Underwood, MD's license?
NPPES lists California license number 145047, 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 Nicolle Underwood, MD prescribe under Medicare Part D?
In 2024, Nicolle Underwood, MD had 124 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Nicolle Underwood, MD's MIPS final score?
The 2023 MIPS final score is 84.4 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), 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.