Registry data as of Aug 27, 2026

Raymond Tan, MD

Radiation Oncology Physician · Fresno, CA

Raymond Tan, MD is a radiation oncology physician with a practice address in Fresno, California, and NPI 1104809946, issued on Nov 25, 2005. Check the license 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
1104809946
Name
Raymond Tan
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
Practice location
7887 N Cedar Ave, Fresno, CA 93720
Phone
(559) 437-1000
Enumerated
Nov 25, 2005
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 7887 N Cedar Ave

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

  1. Brittany Daddino, NP-CNurse Practitioner1487173118
  2. Giatri Dave, MDRadiation Oncology Physician1316901663
  3. Mary Hadcock, M.D.Surgical Oncology Physician1942247606
  4. Tran Ho, D.O.Surgery Physician1144666322
  5. Li Liu, MDRadiation Oncology Physician1619946753
  6. Victor Perry, MDNeurological Surgery Physician1144276288

Verify Raymond Tan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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 →

50% more Medicare Part D claims than the average radiation oncology physician in 2024

203 Medicare Part D claims for 60 beneficiaries, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 43 claims were for opioids.

  1. Raymond Tan203
  2. Specialty average135

Most prescribed

  1. Tamsulosin Hcl32 claims
  2. Pilocarpine Hcl27 claims
  3. Lidocaine Hcl Viscous21 claims
  4. Oxycodone Hcl15 claims
  5. Morphine Sulfate Er11 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 Medicare quality score for 2023: 100 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 score100.0
  2. Costout of 100 · 30%100.0
  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: $541.01

20 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,851 providers of this specialty with any payment received $1,903.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Raymond Tan$541.01
  2. Specialty average$1,903.20

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. Meridian Park Radiation Oncolog Center IncTualatin, OR

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.

Radiation Oncology Physician providers in California

There are 643 radiation oncology physician records in California.

Other radiation oncology physician records in California

  1. Christina Abel, NURSE PRACTITIONEROrange, CA1033638911
  2. Roy Abendroth, MDSan Francisco, CA1811988421
  3. Sunil Advani, M.D.La Jolla, CA1669649844
  4. Faisal Ahmed, MDStanford, CA1427314855
  5. Eugene Ahn, MDSimi Valley, CA1912999533
  6. Raag Airan, MDStanford, CA1912223017
  7. Zahora Ally, MDAntioch, CA1306839915
  8. Munther Alqaisi, M.D.San Bernardino, CA1356454300
  9. Farhan Amanullah, MDStanford, CA1548528813
  10. Arya Amini, M.D.Duarte, CA1487910774

Common questions

What is Raymond Tan, MD's NPI number?

Raymond Tan, MD's National Provider Identifier (NPI) is 1104809946, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Raymond Tan, MD located?

The NPPES record lists a practice address at 7887 N Cedar Ave, Fresno, CA, 93720. Phone: (559) 437-1000. Providers update this record themselves, so call before visiting.

How can I verify Raymond Tan, MD's license?

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 Raymond Tan, MD prescribe under Medicare Part D?

In 2024, Raymond Tan, MD had 203 Medicare Part D claims for 60 beneficiaries; the average among radiation oncology physician prescribers was 135. Part D covers Medicare prescriptions only.

What is Raymond Tan, MD's Medicare quality score?

The 2023 MIPS final score is 100 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), 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.