Dr. David John Oblon, MD

  • Corona, CA
  • Hematologist and oncologist
NPI1215072434
Medicare services, 2016
28,610
Part D claims, 2024
32
Publications
23
Industry payments
$540
Insurance carriers
1
Practice address
4180 Green River Rd, Corona, CA 92882
Practice phone
Call (951) 549-6060
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Christopher ADHC

Corona, California

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Dr. David John Oblon is a hematologist and oncologist in Corona, California

Dr. Oblon practices at St. Christopher ADHC in Corona, California.

Dr. Oblon's NPI, 1215072434, was assigned on February 21, 2007. Dr. Oblon graduated from Perelman School of Medicine - Philadelphia in 1973. Dr. Oblon holds California license G85016.

NPI and contact details
NPI enumeration date
February 21, 2007
NPI status
Active
Practice phone
(951) 549-6060
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1973

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. David John Oblon practices at St. Christopher ADHC in Corona, California

Dr. Oblon's primary practice is St. Christopher ADHC, at 4180 Green River Rd, Corona, CA 92882 in Riverside County. The practice phone is (951) 549-6060.

  • St. Christopher ADHC
    4180 Green River Rd, Corona, CA 92882 · Riverside CountyPhone(951) 549-6060

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. David John Oblon is affiliated with 1 site of care

Dr. Oblon's primary practice is St. Christopher ADHC in Corona, California.

St. Christopher ADHCCorona, CaliforniaPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. David John Oblon's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oblon practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Christopher ADHCAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David John Oblon is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Oblon's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Oblon is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Oblon's licenses on file in 4 states: California, Florida, North Carolina and Rhode Island.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense G85016 · 1999 to 2026 · taxonomy 207RH0003X
  • Florida license1977 to 2002
  • North Carolina license1973 to 2002
  • Rhode Island license1993 to 1999

Hematologists and oncologists near Dr. Oblon

Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.

1,502hematologists and oncologists in California
4hematologists and oncologists in Corona

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. David John Oblon billed Medicare for 28,610 services in 2016

CMS data shows 28,610 Medicare services from Dr. Oblon across 7 procedure codes in 2016. Medicare paid $104,700 for them. Every service was in an office.

Medicare services, 201628,610
Paid by Medicare$104,700
Procedure codes7

Dr. Oblon's Medicare services by type, 2016

  1. Drugs given in the office27,300
  2. Lab and pathology591
  3. Surgery448
  4. Tests and treatments170
  5. Office and hospital visits101

Dr. Oblon compared with the California median for hematologists and oncologists, 2016

  • Dr. Oblon
  • California median
Medicare services
28,610vs 93230.7 times
Part D claims
24vs 39494% below

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Oblon's most billed Medicare procedure codes, 2016

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Oblon

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oblon and other hematologists and oncologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. David John Oblon wrote 32 Medicare Part D claims in 2024

In 2024, Dr. Oblon wrote 32 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $446 in total drug cost. In 2023, CMS named 27 claims across 2 drugs.

Part D claims, 202432
Drugs named by CMS2
Total drug cost$446

Dr. Oblon's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 272024: 2411%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Oblon

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. David John Oblon has 23 publications on record

Dmand AI links 23 papers to Dr. Oblon. The most frequent topics are Bone Marrow Transplantation, Antineoplastic Combined Chemotherapy Protocols and Leukemia, Myeloid. Dr. Oblon has published most often in Bone Marrow Transplant. Dr. Oblon's most frequent co-author is Tariq Siddiqui, MD.

Papers23

Topics Dr. Oblon writes about most

  • Bone Marrow Transplantation
  • Antineoplastic Combined Chemotherapy Protocols
  • Leukemia, Myeloid
  • Hematopoietic Stem Cell Transplantation
  • Bone Marrow
  • Cells, Cultured
  • Cisplatin
  • Etoposide

Dr. Oblon's most frequent co-authors

Recent publications by Dr. Oblon

See all 23 publications and co-authors

See who Dr. Oblon researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Oblon works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. David John Oblon received $540 in industry payments from 2016 to 2019

CMS Open Payments shows 22 general payments to Dr. Oblon from 14 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 98% of the total. NanoString Technologies, Inc. paid the most, $250.

General payments to Dr. Oblon by program year, 2016 to 2019

General payments to Dr. Oblon by kind, 2016 to 2019

$540in total
  • Food and beverage$52898%
  • Education$122%

Companies that paid Dr. Oblon the most, 2016 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Oblon

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David John Oblon graduated from Perelman School of Medicine - Philadelphia

Dr. Oblon graduated from Perelman School of Medicine - Philadelphia in 1973.

  1. Medical schoolPerelman School of Medicine - Philadelphia
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. David John Oblon accepts plans from 1 insurance carrier

Dr. Oblon is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield

Plan types Dr. Oblon accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1
  5. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. David John Oblon's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. David John Oblon

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. David John Oblon's NPI number?

Dr. David John Oblon's NPI number is 1215072434. It was assigned on February 21, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. David John Oblon?

Dr. David John Oblon is a hematologist and oncologist in Corona, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. David John Oblon practice?

Dr. Oblon practices at 4180 Green River Rd, Corona, CA 92882. Dr. Oblon's primary practice is St. Christopher ADHC in Corona, California.

What is Dr. David John Oblon's office phone number?

The practice phone on file for Dr. Oblon is (951) 549-6060.

What is Dr. David John Oblon's medical license number?

Dr. Oblon holds California license G85016, one of the licenses on file in 4 states.

Which states has Dr. David John Oblon been licensed in?

Dmand AI has state licenses on file for Dr. Oblon in California (1999 to 2026), Florida (1977 to 2002), North Carolina (1973 to 2002) and Rhode Island (1993 to 1999).

Does Dr. David John Oblon accept Medicare?

Yes. CMS data shows Dr. Oblon billed Medicare for 28,610 services in 2016.

Is Dr. David John Oblon board certified?

Yes. Dr. Oblon is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. David John Oblon bill to Medicare?

In 2016, Dr. Oblon's most billed Medicare services were injected or infused drug (J0881), surgery: heart and blood vessels (36415) and lab and pathology test (85025).

Where did Dr. David John Oblon go to medical school?

Dr. Oblon graduated from Perelman School of Medicine - Philadelphia in 1973.

Show 6 more questionsShow fewer questions

What drugs does Dr. David John Oblon prescribe most?

In 2024 Medicare Part D data, Dr. Oblon's most prescribed drugs by claims were Amiodarone HCl and Potassium Chloride.

Has Dr. David John Oblon received payments from drug or device companies?

CMS Open Payments shows $540 in general payments to Dr. Oblon from 14 companies from 2016 to 2019. The largest total came from NanoString Technologies, Inc.

How long has Dr. David John Oblon been practicing?

Dr. Oblon graduated from medical school in 1973, 53 years ago.

Does Dr. David John Oblon do research?

Dmand AI links 23 publications to Dr. Oblon.

Who does Dr. David John Oblon publish with?

Dr. Oblon's most frequent co-authors are Tariq Siddiqui, MD (1 shared paper).

What insurance does Dr. David John Oblon accept?

Dr. Oblon is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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