Jill Gerspach Byers, MEDICAL DOCTOR
Urology Physician · Newport Beach, CA
Jill Gerspach Byers, MEDICAL DOCTOR is a urology physician with a practice address in Newport Beach, California, and NPI 1902846629, issued on Jun 8, 2006. Check the license (California G74895, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jill Gerspach Byers
- Credential
- MEDICAL DOCTOR
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- G74895 CA
M-17072 ID
Self-reported in NPPES; status is on the state search - Practice location
- 320 Superior Ave Ste 110, Newport Beach, CA 92663
- Phone
- (949) 515-3777
- Enumerated
- Jun 8, 2006
- Record last updated
- Sep 27, 2023
- Fax
- (949) 480-3404
- Medicare enrollment
- Enrolled (PECOS I20051130000421); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Verify Jill Gerspach Byers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average urology physician in 2024
1,512 Medicare Part D claims for 381 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol219 claims
- Trospium Chloride203 claims
- Gemtesa191 claims
- Cephalexin138 claims
- Myrbetriq126 claims
- Nitrofurantoin Mono-Macro72 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): 78.9 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).
Industry payments in 2024: $582.83
12 payments; by number, the most common kind was food and beverage; the largest payer was Coloplast Corp. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Lamia L Gabal MD IncTustin, CA
- St Lukes Clinic LLCTwin Falls, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jill Gerspach Byers among 1,524 urology physician records in California
Jill Gerspach Byers, MEDICAL DOCTOR is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 51% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1991 · median 2003 among the 1,049 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in Newport Beach → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Jeffrey Bassett, M.D., M.P.H.Newport Beach, CA 926631174718399
- Adam Blatt, MDNewport Beach, CA 926631942451992
- Nathan Colon, MDNewport Beach, CA 926631275067142
- Paul Deridder, MDNewport Beach, CA 926631871877134
- Lauren Fanning, M.D.Newport Beach, CA 926631265696298
- Richard Holevas, MDNewport Beach, CA 926631295807436
- Charles Loeb, MDNewport Beach, CA 926631750878997
- Joel Sheiner, M.D.Newport Beach, CA 926631104863125
Common questions
What is Jill Gerspach Byers, MEDICAL DOCTOR's NPI number?
Jill Gerspach Byers, MEDICAL DOCTOR's National Provider Identifier (NPI) is 1902846629, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jill Gerspach Byers, MEDICAL DOCTOR located?
The NPPES record lists a practice address at 320 Superior Ave Ste 110, Newport Beach, CA, 92663. Phone: (949) 515-3777. Providers update this record themselves, so call before visiting.
How can I verify Jill Gerspach Byers, MEDICAL DOCTOR's license?
NPPES lists California license number G74895, 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 Jill Gerspach Byers, MEDICAL DOCTOR prescribe under Medicare Part D?
In 2024, Jill Gerspach Byers, MEDICAL DOCTOR had 1,512 Medicare Part D claims for 381 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Jill Gerspach Byers, MEDICAL DOCTOR's MIPS final score?
The 2023 MIPS final score is 78.9 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.