Kathlyn R. Ignacio, M.D.
Occupational Medicine Physician · San Diego, CA
Kathlyn R. Ignacio, M.D. is an occupational medicine physician with a practice address in San Diego, California, and NPI 1912917345, issued on Aug 8, 2006. Check the license (California A46520, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathlyn R. Ignacio
- Credential
- M.D.
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- A46520 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Genesee Ave, San Diego, CA 92123
- Phone
- (858) 616-8400
- Enumerated
- Aug 8, 2006
- Record last updated
- Jun 19, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (858) 569-0741
- Medicaid ID
- 00A465200 CA
- Medicare enrollment
- Enrolled (PECOS I20090331000397); accepts Medicare assignment
- Medical or professional school
- Medical College Of Pennsylvania, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 415 in California → Look up another NPI →
Also registered at 2020 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rajy Abulhosn, M.D.Occupational Medicine Physician1396753703
- Kelly Askim, D.O.Neurology Physician1689803223
- Samer Assaf, M.D.Internal Medicine Physician1871682179
- Bob Bernaba, M.D.Clinical Pathology/Laboratory Medicine Physician1053547075
- Alana Dembitsky, MDInternal Medicine Physician1023458460
- Mary Du Quette, M.D.Physical Medicine & Rehabilitation Physician1497765614
Verify Kathlyn R. Ignacio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A46520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 55% of the cost of the top drugs
749 Medicare Part D claims for 257 beneficiaries, against an average of 794 among the 463 providers of this specialty who prescribed in Part D.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium65 claims
- Amlodipine Besylate46 claims
- Metformin Hcl44 claims
- Losartan Potassium40 claims
- Lisinopril35 claims
- Levothyroxine Sodium26 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): 73.6 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: $120.06
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 193 providers of this specialty with any payment received $2,381.67 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 one group practice
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathlyn R. Ignacio among 415 occupational medicine physician records in California
Kathlyn R. Ignacio, M.D. is one of 415 occupational medicine physician records with a practice address in California. 30% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 57% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated1988 · median 1995 among the 51 with a school on file
- Record last updated2013 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in California
There are 415 occupational medicine physician records in California.
All 415 in California → Every provider in San Diego → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Rajy Abulhosn, M.D.San Diego, CA 921231396753703
- Thanh Duong, MDSan Diego, CA 921231699034926
- Thomas Elias, M.D.San Diego, CA 921231710092184
- Arturo Leon, M.D.San Diego, CA 921231669443701
- Stephen Munday, M.D.San Diego, CA 921231700896842
- Spencer Olsen, MDSan Diego, CA 921231962412767
- Eric AmsterSan Diego, CA 921221265665913
- Leland Wessel, M.D.San Diego, CA 921221609988633
Common questions
What is Kathlyn R. Ignacio, M.D.'s NPI number?
Kathlyn R. Ignacio, M.D.'s National Provider Identifier (NPI) is 1912917345, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathlyn R. Ignacio, M.D. located?
The NPPES record lists a practice address at 2020 Genesee Ave, San Diego, CA, 92123. Phone: (858) 616-8400. Providers update this record themselves, so call before visiting.
How can I verify Kathlyn R. Ignacio, M.D.'s license?
NPPES lists California license number A46520, 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 Kathlyn R. Ignacio, M.D. prescribe under Medicare Part D?
In 2024, Kathlyn R. Ignacio, M.D. had 749 Medicare Part D claims for 257 beneficiaries; the average among occupational medicine physician prescribers was 794. Part D covers Medicare prescriptions only.
What is Kathlyn R. Ignacio, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.