NPPES file of Aug 9, 2026

Glenn Wong, DO

Hematology & Oncology Physician · Santa Cruz, CA

Glenn Wong, DO is a hematology & oncology physician with a practice address in Santa Cruz, California, and NPI 1063537934, issued on Mar 20, 2007. Check the license (California 20A10095, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063537934
Name
Glenn Wong
Credential
DO
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
20A10095 CA
Self-reported in NPPES; status is on the state search
Practice location
2850 Commercial Xing, Santa Cruz, CA 95065
Phone
(831) 460-7355
Enumerated
Mar 20, 2007
Record last updated
Nov 4, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081029000527); accepts Medicare assignment
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 2850 Commercial Xing

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

  1. Rohan AhluwaliaHematology & Oncology Physician1053632356
  2. Amanda BrynerNurse Practitioner1437798782
  3. Jill Gillespie, LCSWClinical Social Worker1861238107
  4. Carla Gomez, LCSWClinical Social Worker1881899367
  5. Delphina Kim, CRNPAdult Health Nurse Practitioner1922367390
  6. Steven Lai, MDHematology & Oncology Physician1295364321

Verify Glenn Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10095
    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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26% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,107 Medicare Part D claims for 192 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 22 claims were for opioids.

  1. Glenn Wong1,107
  2. Specialty average877

Most prescribed

  1. Prednisone102 claims
  2. Acyclovir96 claims
  3. Anastrozole80 claims
  4. Hydroxyurea62 claims
  5. Brukinsa50 claims
  6. Lenalidomide49 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: $498.20

20 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. 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. Glenn Wong$498.20
  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. Sutter Bay Medical FoundationSanta Cruz, CA

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

Glenn Wong among 1,583 hematology & oncology physician records in California

Glenn Wong, DO 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 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 40% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2001 · median 2003 among the 1,124 with a school on file
  • Record last updated2011 · 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. Amy McMullen, M.D.Santa Cruz, CA 950651205860954
  5. Janet WangSanta Cruz, CA 950651760629158
  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 Glenn Wong, DO's NPI number?

Glenn Wong, DO's National Provider Identifier (NPI) is 1063537934, issued on Mar 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Glenn Wong, DO located?

The NPPES record lists a practice address at 2850 Commercial Xing, Santa Cruz, CA, 95065. Phone: (831) 460-7355. Providers update this record themselves, so call before visiting.

How can I verify Glenn Wong, DO's license?

NPPES lists California license number 20A10095, 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 Glenn Wong, DO prescribe under Medicare Part D?

In 2024, Glenn Wong, DO had 1,107 Medicare Part D claims for 192 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.