Mary Donaldson Defigard, MD
Family Medicine Physician · Los Gatos, CA
Mary Donaldson Defigard, MD is a family medicine physician with a practice address in Los Gatos, California, and NPI 1710914791, issued on Jun 27, 2006. Check the license (California G297128, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Donaldson Defigard
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G297128 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15066 Los Gatos Almaden RD, Los Gatos, CA 95032
- Phone
- (408) 377-9180
- Enumerated
- Jun 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 377-1459
- Medicaid ID
- OOG291280 CA
- Medicare enrollment
- Enrolled (PECOS I20090223000173); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1972
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15066 Los Gatos Almaden RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Donaldson Defigard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G297128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% more Medicare Part D claims than the average family medicine physician in 2024
6,797 Medicare Part D claims for 710 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 355 claims were for opioids.
Most prescribed
- Atorvastatin Calcium459 claims
- Levothyroxine Sodium313 claims
- Amlodipine Besylate254 claims
- Losartan Potassium203 claims
- Metformin Hcl202 claims
- Lisinopril176 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): 65.4 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).
Industry payments in 2024: $480.79
22 payments; by number, the most common kind was food and beverage; the largest payer was Radius Health, Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Blossom Ridge Medical Group IncLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Donaldson Defigard among 17,133 family medicine physician records in California
Mary Donaldson Defigard, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1972 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Los Gatos
They are 45 of the 1,905 NPPES records with a practice address in Los Gatos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Gatos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Broad, MDLos Gatos, CA 950321750374591
- Tiffany Davies, M.D.Los Gatos, CA 950321386754133
- Dewey Duckham, M.D.Los Gatos, CA 950321356369508
- Timothy Jen, M.D.Los Gatos, CA 950321013944628
- Neeraj Kochhar, MDLos Gatos, CA 950321033180294
- Thao Nguyen, MDLos Gatos, CA 950321619909975
- Arthur Polussa, M.D.Los Gatos, CA 950321629062021
- Claire RaiLos Gatos, CA 950321043206675
Common questions
What is Mary Donaldson Defigard, MD's NPI number?
Mary Donaldson Defigard, MD's National Provider Identifier (NPI) is 1710914791, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Donaldson Defigard, MD located?
The NPPES record lists a practice address at 15066 Los Gatos Almaden RD, Los Gatos, CA, 95032. Phone: (408) 377-9180. Providers update this record themselves, so call before visiting.
How can I verify Mary Donaldson Defigard, MD's license?
NPPES lists California license number G297128, 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 Mary Donaldson Defigard, MD prescribe under Medicare Part D?
In 2024, Mary Donaldson Defigard, MD had 6,797 Medicare Part D claims for 710 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mary Donaldson Defigard, MD's MIPS final score?
The 2023 MIPS final score is 65.4 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.