Pacita R. Aducayen, M.D.
Internal Medicine Physician · Pittsburg, CA
Pacita R. Aducayen, M.D. is an internal medicine physician with a practice address in Pittsburg, California, and NPI 1851307219, issued on Jul 31, 2006. Check the license (California A049795, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Pacita R. Aducayen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A049795 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2250 Gladstone Dr Ste 2, Pittsburg, CA 94565
- Phone
- (925) 432-6208
- Enumerated
- Jul 31, 2006
- Record last updated
- Oct 13, 2023
- Fax
- (925) 432-0134
- Medicare enrollment
- Enrolled (PECOS I20060110000834); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2250 Gladstone Dr Ste 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Armida Fajardo, FNP-BCFamily Nurse Practitioner1043934524
- Wilma Parnaso, FNP-CFamily Nurse Practitioner1073230793
Verify Pacita R. Aducayen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A049795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average internal medicine physician in 2024
10,494 Medicare Part D claims for 663 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 283 claims were for opioids.
Most prescribed
- Atorvastatin Calcium733 claims
- Amlodipine Besylate712 claims
- Losartan Potassium581 claims
- Levothyroxine Sodium384 claims
- Metformin Hcl331 claims
- Gabapentin250 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: $1,210.82
56 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Pacita R. Aducayen among 17,696 internal medicine physician records in California
Pacita R. Aducayen, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1981 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 internal medicine physician records list a practice address in Pittsburg
They are 11 of the 593 NPPES records with a practice address in Pittsburg, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pittsburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Galicano Andal, M.D.Pittsburg, CA 945651437263571
- Kate Christensen, MDPittsburg, CA 945651356427884
- John Gallo, DOPittsburg, CA 945651558446229
- Sara Jaka, MDPittsburg, CA 945651760989222
- Dong Hoon Lee, M.D.Pittsburg, CA 945651174854038
- Shalini Madugundi, M.DPittsburg, CA 945651154635506
- Michael Russell, M.D.Pittsburg, CA 945651578615316
- Juan Sequeira, M.D.Pittsburg, CA 945651558389635
Common questions
What is Pacita R. Aducayen, M.D.'s NPI number?
Pacita R. Aducayen, M.D.'s National Provider Identifier (NPI) is 1851307219, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Pacita R. Aducayen, M.D. located?
The NPPES record lists a practice address at 2250 Gladstone Dr Ste 2, Pittsburg, CA, 94565. Phone: (925) 432-6208. Providers update this record themselves, so call before visiting.
How can I verify Pacita R. Aducayen, M.D.'s license?
NPPES lists California license number A049795, 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 Pacita R. Aducayen, M.D. prescribe under Medicare Part D?
In 2024, Pacita R. Aducayen, M.D. had 10,494 Medicare Part D claims for 663 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.