Dr. Robin L. Obenchain, MD
- Medicare services, 2024
- 1,894
- Medicare patients, 2024
- 315
- Part D claims, 2024
- 831
- Hospital affiliations
- 3
- Industry payments
- $2,576
- Practice address
- 250 East Dunlap Avenue, Phoenix, AZ 85020
- Practice phone
- Call (602) 943-2381
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Obenchain's professional email, personal email and mobile number
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Dr. Robin L. Obenchain is a hematologist and oncologist in Phoenix, Arizona
Dr. Obenchain practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth.
Dr. Obenchain's NPI, 1508829094, was assigned on April 7, 2006. Dr. Obenchain graduated from Virginia Commonwealth University, School of Medicine in 1999. Dr. Obenchain holds Arizona license 35188.
- NPI
- 1508829094NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082688981
- NPI enumeration date
- April 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (602) 943-2381
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robin L. Obenchain practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona
Dr. Obenchain's primary practice is HonorHealth John C. Lincoln Medical Center, at 250 East Dunlap Avenue, Phoenix, AZ 85020 in Maricopa County. The practice phone is (602) 943-2381.
- HonorHealth John C. Lincoln Medical Center250 East Dunlap Avenue, Phoenix, AZ 85020 · Maricopa CountyPhone(602) 943-2381
Source: Dmand AI Affiliation Data
Dr. Robin L. Obenchain is affiliated with 4 sites of care and 1 medical group
Dr. Obenchain's primary practice is HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth. Dr. Obenchain is also affiliated with Dignity Health Chandler Regional Medical Center. The medical group on file is HonorHealth Medical Group. Dmand AI also links Dr. Obenchain to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robin L. Obenchain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Obenchain practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HonorHealth John C. Lincoln Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robin L. Obenchain is one of 259 hematologists and oncologists in Arizona
Hematology and oncology is Dr. Obenchain's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Obenchain is licensed in Arizona.
Specialties and state licenses
- Hematology and oncology, ArizonaPrimary
Hematologists and oncologists near Dr. Obenchain
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robin L. Obenchain billed Medicare for 1,894 services in 2024
CMS data shows 1,894 Medicare services from Dr. Obenchain across 5 procedure codes in 2024, for 315 Medicare patients. Medicare paid $107,491 for them. Every service was in an office.
Dr. Obenchain's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1122024: 1,0852%
- Other services
- 2023: 792024: 809924%
Dr. Obenchain compared with the Arizona median for hematologists and oncologists, 2024
- Dr. Obenchain
- Arizona median
- Medicare services
- 1,894vs 2,70530% below
- Medicare patients
- 315vs 37015% below
- Part D claims
- 543vs 40434% above
Medians across 249 hematologists and oncologists in Arizona with Dmand AI profiles that report each measure.
Dr. Obenchain's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Obenchain?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Obenchain and other hematologists and oncologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robin L. Obenchain treated 315 Medicare patients in 2024, average age 74
CMS counts 315 Medicare patients who saw Dr. Obenchain in 2024. The largest group is 65 to 74, with 161 patients. 70% of them have high cholesterol, and 67% have cancer. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Obenchain's median patient age at 71, with 80% women.
Dr. Obenchain's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Obenchain's Medicare patients by sex, 2024
- Women24477%
- Men7123%
Chronic conditions among Dr. Obenchain's Medicare patients, 2024
- High cholesterol70%
- Cancer67%
- High blood pressure65%
- Arthritis47%
- Diabetes30%
- Chronic kidney disease27%
- Ischemic heart disease25%
- Osteoporosis24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Obenchain's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women80%
- Men18%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robin L. Obenchain wrote 831 Medicare Part D claims in 2024
In 2024, Dr. Obenchain wrote 831 Medicare Part D claims for 197 patients. 84% of them were for generic drugs. CMS names the drug for 543 of them, across 22 drugs with 11 or more claims each, at $567,755 in total drug cost. In 2023, CMS named 657 claims across 26 drugs.
Dr. Obenchain's Part D claims by kind of drug, 2024
- Generic698 claims84%
- Brand-name and other133 claims16%
Dr. Obenchain'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.
Drug classes CMS tracks in Dr. Obenchain's Part D claims, 2024
- Opioids10%82 of 831 claims
- Antibiotics10%83 of 831 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6572024: 54317%
Drugs named by CMS: 22 in 2024, 26 in 2023.
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
Dr. Robin L. Obenchain offers telehealth to Medicare patients
Dr. Obenchain accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Obenchain as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robin L. Obenchain received $2,576 in industry payments from 2016 to 2025
CMS Open Payments shows 135 general payments to Dr. Obenchain from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 81% of the total. Sanofi and Genzyme US Companies paid the most, $434.
General payments to Dr. Obenchain by program year, 2016 to 2025
General payments to Dr. Obenchain by kind, 2016 to 2025
- Food and beverage$2,09481%
- Speaker and faculty fees$35014%
- Education$1325%
Companies that paid Dr. Obenchain the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robin L. Obenchain graduated from Virginia Commonwealth University, School of Medicine
Dr. Obenchain graduated from Virginia Commonwealth University, School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robin L. Obenchain's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robin L. Obenchain
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. Robin L. Obenchain's NPI number?
Dr. Robin L. Obenchain's NPI number is 1508829094. It was assigned on April 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robin L. Obenchain?
Dr. Robin L. Obenchain is a hematologist and oncologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Robin L. Obenchain practice?
Dr. Obenchain practices at 250 East Dunlap Avenue, Phoenix, AZ 85020. Dr. Obenchain's primary practice is HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona, part of HonorHealth. Dmand AI also links Dr. Obenchain to 1 hospital and 1 group practice or clinic.
What is Dr. Robin L. Obenchain's office phone number?
The practice phone on file for Dr. Obenchain is (602) 943-2381.
What is Dr. Robin L. Obenchain's medical license number?
Dr. Obenchain holds Arizona license 35188.
Which hospitals is Dr. Robin L. Obenchain affiliated with?
Dr. Obenchain practices at HonorHealth John C. Lincoln Medical Center in Phoenix, Arizona. Dr. Obenchain is also affiliated with Dignity Health Chandler Regional Medical Center. Dmand AI links Dr. Obenchain to 1 more hospital.
What medical group is Dr. Robin L. Obenchain part of?
Dr. Obenchain is linked to HonorHealth Medical Group.
Does Dr. Robin L. Obenchain accept Medicare?
Yes. CMS data shows Dr. Obenchain billed Medicare for 1,894 services in 2024, and Dr. Obenchain accepts Medicare assignment.
Does Dr. Robin L. Obenchain offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Obenchain as offering telehealth services.
How many Medicare patients does Dr. Robin L. Obenchain see?
CMS counts 315 Medicare patients who saw Dr. Obenchain in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Robin L. Obenchain bill to Medicare?
In 2024, Dr. Obenchain's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. Robin L. Obenchain go to medical school?
Dr. Obenchain graduated from Virginia Commonwealth University, School of Medicine in 1999.
What drugs does Dr. Robin L. Obenchain prescribe most?
In 2024 Medicare Part D data, Dr. Obenchain's most prescribed drugs by claims were Anastrozole, Ibrance and Ondansetron HCl.
Has Dr. Robin L. Obenchain received payments from drug or device companies?
CMS Open Payments shows $2,576 in general payments to Dr. Obenchain from 31 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Robin L. Obenchain been practicing?
Dr. Obenchain graduated from medical school in 1999, 27 years ago.
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