Barbara Denysiak, M.D.
Legal Medicine · San Diego, CA
Barbara Denysiak, M.D. is a legal medicine with a practice address in San Diego, California, and NPI 1003085572, issued on Feb 28, 2008. Check the license (California A48505, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Barbara Denysiak
- Credential
- M.D.
- Primary taxonomy
- Legal Medicine 173000000X
- License number
- A48505 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3969 4TH Ave, San Diego, CA 92103
- Phone
- (619) 294-6500
- Enumerated
- Feb 28, 2008
- Record last updated
- Jan 14, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (619) 294-6505
- Medicare enrollment
- Enrolled (PECOS I20060824000285); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest legal medicine records → All 112 in California → Look up another NPI →
Also registered at 3969 4TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Gualtieri, M.D.Ophthalmology Physician1790769156
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Verify Barbara Denysiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A48505Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average legal medicine in 2024
5,400 Medicare Part D claims for 526 beneficiaries, against an average of 2,531 among the 246 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium344 claims
- Levothyroxine Sodium330 claims
- Losartan Potassium307 claims
- Amlodipine Besylate195 claims
- Metoprolol Succinate156 claims
- Gabapentin143 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.
Industry payments in 2024: $2,605.85
85 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 144 providers of this specialty with any payment received $4,618.84 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
- Medicus MD IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barbara Denysiak among 112 legal medicine records in California
Barbara Denysiak, M.D. is one of 112 legal medicine records with a practice address in California. 42% 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 81% of them.
- NPI issued2008 · 81% of these records are older, 17% newer
- In a Medicare fileYes · 42% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated1984 · median 1984 among the 23 with a school on file
- Record last updated2011 · 86% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 173000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Legal Medicine providers in California
There are 112 legal medicine records in California.
All 112 in California → Every provider in San Diego → Legal Medicine nationwide →
The 8 legal medicine records with the nearest ZIP codes
- Kenneth SigelmanSan Diego, CA 921011700714185
- Mahindokht Raiszadeh, M.D.San Diego, CA 921171194898064
- Jae Lee, MD, MPH, JDSan Diego, CA 921311437969334
- Gary Vandenberg, MDLa Jolla, CA 920371912122680
- Xun Li, M.D.Carlsbad, CA 920081740581032
- Vallop Kanjanapone, M.D.El Centro, CA 922431982696969
- Carmelita Uy, M.D.Chula Vista, CA 919101154431484
- Ralph Steiger, M.D.West Covina, CA 917901528096450
Common questions
What is Barbara Denysiak, M.D.'s NPI number?
Barbara Denysiak, M.D.'s National Provider Identifier (NPI) is 1003085572, issued on Feb 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Denysiak, M.D. located?
The NPPES record lists a practice address at 3969 4TH Ave, San Diego, CA, 92103. Phone: (619) 294-6500. Providers update this record themselves, so call before visiting.
How can I verify Barbara Denysiak, M.D.'s license?
NPPES lists California license number A48505, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Barbara Denysiak, M.D. prescribe under Medicare Part D?
In 2024, Barbara Denysiak, M.D. had 5,400 Medicare Part D claims for 526 beneficiaries; the average among legal medicine prescribers was 2,531. Part D covers Medicare prescriptions only.
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.