Registry data as of Aug 27, 2026

Katya Adachi Serrano, MD

Family Medicine Physician · Santa Maria, CA

Katya Adachi Serrano, MD is a family medicine physician with a practice address in Santa Maria, California, and NPI 1215227244, issued on Apr 11, 2011. Check the license (California A124695, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1215227244
Name
Katya Adachi Serrano
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A124695 CA
Self-reported in NPPES; status is on the state search
Practice location
2115 Centerpointe Pkwy, Santa Maria, CA 93455
Phone
(805) 346-7230
Enumerated
Apr 11, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2115 Centerpointe Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eva AvilaCase Manager/Care Coordinator1447689104
  2. Ramona CabilesCommunity Health Registered Nurse1174921076
  3. Joceline Castillo-Ayala, LVNRegistered Nurse1114623279
  4. Jose Chavez, PHYSICIAN ASSISTANTPhysician Assistant1225323116
  5. Jill Cralley, RN, PHNCommunity Health Registered Nurse1700075058
  6. Robyn Freeman, RN, PHNCommunity Health Registered Nurse1417146762

Verify Katya Adachi Serrano in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A124695
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

68% fewer Medicare Part D claims than the average family medicine physician in 2024

1,142 Medicare Part D claims for 78 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Katya Adachi Serrano1,142
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium102 claims
  2. Amlodipine Besylate89 claims
  3. Metformin Hcl45 claims
  4. Losartan Potassium43 claims
  5. Jardiance31 claims
  6. Eliquis28 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: $60.51

2 payments, mostly food and beverage; the largest payer was Gilead Sciences, Inc.. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katya Adachi Serrano$60.51
  2. Specialty average$861.30

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Santa Barbara County AuditorSanta Barbara, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

73 family medicine physician records list a Santa Maria practice address

They are 73 of the 3,047 NPPES records with a Santa Maria practice address, and 16,272 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Katya Adachi Serrano, MD's NPI number?

Katya Adachi Serrano, MD's National Provider Identifier (NPI) is 1215227244, issued on Apr 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Katya Adachi Serrano, MD located?

The NPPES record lists a practice address at 2115 Centerpointe Pkwy, Santa Maria, CA, 93455. Phone: (805) 346-7230. Providers update this record themselves, so call before visiting.

How can I verify Katya Adachi Serrano, MD's license?

NPPES lists California license number A124695, 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 Katya Adachi Serrano, MD prescribe under Medicare Part D?

In 2024, Katya Adachi Serrano, MD had 1,142 Medicare Part D claims for 78 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.