Alison Grace Chang, MD
Hematology & Oncology Physician · Palo Alto, CA
Alison Grace Chang, MD is a hematology & oncology physician with a practice address in Palo Alto, California, and NPI 1205253465, issued on Mar 26, 2014. Check the license (California A139702, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alison Grace Chang
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A139702 CA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 853-2905
- Enumerated
- Mar 26, 2014
- Record last updated
- Aug 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200807002731); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nana Efua Adabie, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1437647732
- Amy Adams, M.D.Dermatology Physician1679643928
- William Adams, DPMFoot & Ankle Surgery Podiatrist1447487830
Verify Alison Grace Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,633 Medicare Part D claims for 392 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Anastrozole289 claims
- Letrozole191 claims
- Hydroxyurea108 claims
- Exemestane90 claims
- Eliquis64 claims
- Prednisone53 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: $262.37
2 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.
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
- Sutter Bay Medical FoundationPalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alison Grace Chang among 1,583 hematology & oncology physician records in California
Alison Grace Chang, MD 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 2014, is newer than 81% of them.
- NPI issued2014 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2014 · median 2003 among the 1,124 with a school on file
- Record last updated2020 · 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.
All 1,583 in California → Every provider in Palo Alto → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Eric Lau, D.O.Palo Alto, CA 943011891182465
- Roozbeh Mohajer, MDPalo Alto, CA 943011457538449
- Bernard Fine, MD PHDPalo Alto, CA 943041962650895
- Benjamin Kim, M.D., M.PHIL.Palo Alto, CA 943041063652386
- William Novotny, M.D.Palo Alto, CA 943041235207911
- Maya White, M.D.Palo Alto, CA 943041992182638
- Steven Artandi, M.D.Stanford, CA 943051548352909
- Linda Boxer, M.D.Stanford, CA 943051306938766
Common questions
What is Alison Grace Chang, MD's NPI number?
Alison Grace Chang, MD's National Provider Identifier (NPI) is 1205253465, issued on Mar 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Alison Grace Chang, MD located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 853-2905. Providers update this record themselves, so call before visiting.
How can I verify Alison Grace Chang, MD's license?
NPPES lists California license number A139702, 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 Alison Grace Chang, MD prescribe under Medicare Part D?
In 2024, Alison Grace Chang, MD had 1,633 Medicare Part D claims for 392 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.