Dr. Robin Marcellus Dennings, MD
- Medicare services, 2023
- 47
- Medicare patients, 2024
- 42
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 5201 Norris Canyon Road, Suite 100, San Ramon, CA 94583
- Practice phone
- Call (925) 937-0605
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Tresanti Surgical Center
Surgery Center - Medicare-Certified · San Ramon, California
Find Dr. Dennings' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robin Marcellus Dennings is an anesthesiologist in San Ramon, California
Dr. Dennings practices at The Tresanti Surgical Center in San Ramon, California.
Dr. Dennings' NPI, 1649265349, was assigned on September 19, 2005. Dr. Dennings graduated from University of California, Geffen School of Medicine in 1992. Dr. Dennings holds California license G79204.
- NPI
- 1649265349NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517904402
- NPI enumeration date
- September 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 937-0605
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robin Marcellus Dennings practices at The Tresanti Surgical Center in San Ramon, California
Dr. Dennings' primary practice is The Tresanti Surgical Center, at 5201 Norris Canyon Road, Suite 100, San Ramon, CA 94583. The practice phone is (925) 937-0605.
- The Tresanti Surgical Center5201 Norris Canyon Road, Suite 100, San Ramon, CA 94583Phone(925) 937-0605
Source: Dmand AI Affiliation Data
Dr. Robin Marcellus Dennings is affiliated with 2 sites of care and 1 medical group
Dr. Dennings' primary practice is The Tresanti Surgical Center in San Ramon, California. The medical group on file is Empire Anesthesia Inc. Dmand AI also links Dr. Dennings to 1 more ambulatory surgery center, 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 Marcellus Dennings' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennings practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Tresanti Surgical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robin Marcellus Dennings is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Dennings' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Dennings is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Dennings
Counts of anesthesiologists 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 Marcellus Dennings billed Medicare for 47 services in 2023
CMS data shows 47 Medicare services from Dr. Dennings across 2 procedure codes in 2023, for 42 Medicare patients. Medicare paid $5,848 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Dennings' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Anesthesia
- 2022: 702023: 4733%
Dr. Dennings compared with the California median for anesthesiologists, 2023
- Dr. Dennings
- California median
- Medicare services
- 47vs 7235% below
- Medicare patients
- 42vs 14371% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Dennings' most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dennings and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robin Marcellus Dennings treated 42 Medicare patients in 2024, average age 71
CMS counts 42 Medicare patients who saw Dr. Dennings in 2024. The largest group is 65 to 74, with 23 patients. 57% of them have high blood pressure, and 52% have high cholesterol. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dennings' median patient age at 64, with 33% women.
Dr. Dennings' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dennings' Medicare patients by sex, 2024
- Women2048%
- Men2252%
Chronic conditions among Dr. Dennings' Medicare patients, 2024
- High blood pressure57%
- High cholesterol52%
- Arthritis40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dennings' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Robin Marcellus Dennings takes part in Medicare
Dr. Dennings accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robin Marcellus Dennings graduated from University of California, Geffen School of Medicine
Dr. Dennings graduated from University of California, Geffen School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robin Marcellus Dennings'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Marcellus Dennings
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 Marcellus Dennings' NPI number?
Dr. Robin Marcellus Dennings' NPI number is 1649265349. It was assigned on September 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robin Marcellus Dennings?
Dr. Robin Marcellus Dennings is an anesthesiologist in San Ramon, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Robin Marcellus Dennings practice?
Dr. Dennings practices at 5201 Norris Canyon Road, Suite 100, San Ramon, CA 94583. Dr. Dennings' primary practice is The Tresanti Surgical Center in San Ramon, California. Dmand AI also links Dr. Dennings to 1 ambulatory surgery center.
What is Dr. Robin Marcellus Dennings' office phone number?
The practice phone on file for Dr. Dennings is (925) 937-0605.
What is Dr. Robin Marcellus Dennings' medical license number?
Dr. Dennings holds California license G79204.
What medical group is Dr. Robin Marcellus Dennings part of?
Dr. Dennings is linked to Empire Anesthesia Inc.
Does Dr. Robin Marcellus Dennings accept Medicare?
Yes. CMS data shows Dr. Dennings billed Medicare for 47 services in 2023, and Dr. Dennings accepts Medicare assignment.
How many Medicare patients does Dr. Robin Marcellus Dennings see?
CMS counts 42 Medicare patients who saw Dr. Dennings in 2024, with an average age of 71.
What services does Dr. Robin Marcellus Dennings bill to Medicare?
In 2023, Dr. Dennings' most billed Medicare services were anesthesia (00811) and anesthesia (00813).
Where did Dr. Robin Marcellus Dennings go to medical school?
Dr. Dennings graduated from University of California, Geffen School of Medicine in 1992.
How long has Dr. Robin Marcellus Dennings been practicing?
Dr. Dennings graduated from medical school in 1992, 34 years ago.
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