NPPES file of Aug 9, 2026

Amy D. McMullen, M.D.

Hematology & Oncology Physician · Santa Cruz, CA

Amy D. McMullen, M.D. is a hematology & oncology physician with a practice address in Santa Cruz, California, and NPI 1205860954, issued on Jul 10, 2006. Check the license (California A100403, 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
1205860954
Name
Amy D. McMullen
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A100403 CA
Self-reported in NPPES; status is on the state search
Practice location
1669 Dominican Way, Santa Cruz, CA 95065
Phone
(831) 475-2220
Enumerated
Jul 10, 2006
Record last updated
Jul 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100830000752); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2004
Telehealth
Offers telehealth (CMS)
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 1669 Dominican Way

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

  1. Michael Alexander, MDMedical Oncology Physician1053321760
  2. Alice Foley, PA-CPhysician Assistant1770928715
  3. Michael Yen, M.D., PH.D.Hematology & Oncology Physician1437269313

Verify Amy D. McMullen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A100403
    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.

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69% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,481 Medicare Part D claims for 239 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 33 claims were for opioids.

  1. Amy McMullen1,481
  2. Specialty average877

Most prescribed

  1. Anastrozole179 claims
  2. Ondansetron Odt94 claims
  3. Pomalyst75 claims
  4. Gabapentin61 claims
  5. Acyclovir58 claims
  6. Eliquis56 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): 82.1 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.

  1. Qualityout of 100 · 30% of the final score57.6
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,460.00

139 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amy McMullen$3,460.00
  2. Specialty average$7,481.41

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. Central Coast Oncology And HematologySanta Cruz, CA

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

Amy D. McMullen among 1,583 hematology & oncology physician records in California

Amy D. McMullen, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2004 · median 2003 among the 1,124 with a school on file
  • Record last updated2016 · 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 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Rohan AhluwaliaSanta Cruz, CA 950651053632356
  2. Julie Jaffe, M.D.Santa Cruz, CA 950651801942008
  3. Steven Lai, MDSanta Cruz, CA 950651295364321
  4. Janet WangSanta Cruz, CA 950651760629158
  5. Glenn Wong, DOSanta Cruz, CA 950651063537934
  6. Michael Wu, MDSanta Cruz, CA 950651700850104
  7. Michael Yen, M.D., PH.D.Santa Cruz, CA 950651437269313
  8. Jennifer Choate, MDSoquel, CA 950731326073354

Common questions

What is Amy D. McMullen, M.D.'s NPI number?

Amy D. McMullen, M.D.'s National Provider Identifier (NPI) is 1205860954, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Amy D. McMullen, M.D. located?

The NPPES record lists a practice address at 1669 Dominican Way, Santa Cruz, CA, 95065. Phone: (831) 475-2220. Providers update this record themselves, so call before visiting.

How can I verify Amy D. McMullen, M.D.'s license?

NPPES lists California license number A100403, 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 Amy D. McMullen, M.D. prescribe under Medicare Part D?

In 2024, Amy D. McMullen, M.D. had 1,481 Medicare Part D claims for 239 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Amy D. McMullen, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.1 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.