NPPES file of Aug 9, 2026

Elaine Yin, MD

Obstetrics & Gynecology Physician · Santa Maria, CA

Elaine Yin, MD is an obstetrics & gynecology physician with a practice address in Santa Maria, California, and NPI 1861418246, issued on Jul 15, 2006. Check the license (California G74466, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861418246
Name
Elaine Yin
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G74466 CA
Self-reported in NPPES; status is on the state search
Practice location
220 South Palisade Drive, Santa Maria, CA 93454
Phone
(805) 354-7101
Enumerated
Jul 15, 2006
Record last updated
Nov 8, 2023
Fax
(805) 354-7102
Medicaid IDs
00G744660 CA
GR0092200 CA
Medicare enrollment
Enrolled (PECOS I20050331001236); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 220 South Palisade Drive

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

  1. Lori Melson, NPWomen's Health Nurse Practitioner1205852605
  2. Kerri Wiltchik, MDGynecology Physician1043203730

Verify Elaine Yin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G74466
    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

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2.8 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

467 Medicare Part D claims for 93 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Elaine Yin467
  2. Specialty average165

Most prescribed

  1. Estradiol141 claims
  2. Estradiol (Once Weekly)23 claims
  3. Estradiol (Twice Weekly)23 claims
  4. Estradiol-Norethindrone Acetat21 claims
  5. Levothyroxine Sodium17 claims
  6. Valacyclovir17 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 MIPS final score for 2023 (Medicare payment program): 96.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $275.77

2 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elaine Yin$275.77
  2. Specialty average$1,030.61

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

  1. Pacific Central Coast Health CentersSanta Maria, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elaine Yin among 5,088 obstetrics & gynecology physician records in California

Elaine Yin, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1988 · median 2004 among the 2,700 with a school on file
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 obstetrics & gynecology physician records list a practice address in Santa Maria

They are 39 of the 3,047 NPPES records with a practice address in Santa Maria, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Ilona Baran, MDSanta Maria, CA 934541487639290
  2. Tad Callahan, MDSanta Maria, CA 934541225112931
  3. Brian Crisp, M.D.Santa Maria, CA 934541861446262
  4. Keith Dillon, M.D.Santa Maria, CA 934541154407534
  5. Kenneth Fogelberg, M.D.Santa Maria, CA 934541801897764
  6. Carolyn Griffith, M.D.Santa Maria, CA 934541720009269
  7. Rebecca Jones, M.D.Santa Maria, CA 934541093823700
  8. Robert McGhie, M.D.Santa Maria, CA 934541730184367

Common questions

What is Elaine Yin, MD's NPI number?

Elaine Yin, MD's National Provider Identifier (NPI) is 1861418246, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elaine Yin, MD located?

The NPPES record lists a practice address at 220 South Palisade Drive, Santa Maria, CA, 93454. Phone: (805) 354-7101. Providers update this record themselves, so call before visiting.

How can I verify Elaine Yin, MD's license?

NPPES lists California license number G74466, 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 Elaine Yin, MD prescribe under Medicare Part D?

In 2024, Elaine Yin, MD had 467 Medicare Part D claims for 93 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Elaine Yin, MD's MIPS final score?

The 2023 MIPS final score is 96.5 of 100. 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.