Dr. Robert A. Chase, MD
- Medicare services, 2024
- 775
- Medicare patients, 2024
- 470
- Part D claims, 2024
- 469
- Hospital affiliations
- 2
- Industry payments
- $431
- Practice address
- 1100 Marshall Way, Placerville, CA 95667
- Practice phone
- Call (530) 622-1441
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chase's 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. Robert A. Chase is an otolaryngologist in Placerville, California
Dr. Chase practices at Marshall Medical in Placerville, California, part of Marshall Medical Center.
Dr. Chase's NPI, 1487757779, was assigned on September 6, 2006. Dr. Chase graduated from SUNY Downstate Health Sciences University in 1977. Dr. Chase's California license number on file is G74828.
- NPI
- 1487757779NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224042759
- NPI enumeration date
- September 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 622-1441
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Chase practices at Marshall Medical in Placerville, California
Dr. Chase's primary practice is Marshall Medical, at 1100 Marshall Way, Placerville, CA 95667 in El Dorado County. The practice phone is (530) 622-1441.
- Marshall Medical1100 Marshall Way, Placerville, CA 95667 · El Dorado CountyPhone(530) 622-1441
Source: Dmand AI Affiliation Data
Dr. Robert A. Chase is affiliated with 3 sites of care and 1 medical group
Dr. Chase's primary practice is Marshall Medical in Placerville, California, part of Marshall Medical Center. Dr. Chase is also affiliated with UC Davis Medical Center. The medical group on file is Marshall Medical Center. Dmand AI also links Dr. Chase to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert A. Chase's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chase practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshall Medical | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Marshall Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert A. Chase is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Chase's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Chase is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dmand AI has Dr. Chase's licenses on file in 5 states: California, Nevada, Colorado, New York and Vermont.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
- Nevada license
- Colorado license
- New York license
- Vermont license
Clinical focus
Dmand AI lists acute sinusitis, chronic ear infection, chronic nasal allergies, ear eustachian tube disorders, ear infection, endoscopic sinus surgery, hearing loss and impairment and larynx and vocal cord disease among the conditions Dr. Chase treats.
Otolaryngologists near Dr. Chase
Counts of otolaryngologists 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. Robert A. Chase billed Medicare for 775 services in 2024
CMS data shows 775 Medicare services from Dr. Chase across 6 procedure codes in 2024, for 470 Medicare patients. Medicare paid $36,585 for them. Every service was in an office.
Dr. Chase's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4232024: 4113%
- Surgery
- 2023: 3882024: 3646%
- Tests and treatments
- 2023: 132024: 0100%
Dr. Chase compared with the California median for otolaryngologists, 2024
- Dr. Chase
- California median
- Medicare services
- 775vs 66616% above
- Medicare patients
- 470vs 29659% above
- Part D claims
- 407vs 1183.4 times
Medians across 1,045 otolaryngologists in California with Dmand AI profiles that report each measure.
Dr. Chase'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. Chase?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chase and other otolaryngologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert A. Chase treated 470 Medicare patients in 2024, average age 76
CMS counts 470 Medicare patients who saw Dr. Chase in 2024. The largest group is 65 to 74, with 186 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chase's median patient age at 74, with 53% women.
Dr. Chase's Medicare patients by age, 2024
Dr. Chase's Medicare patients by sex, 2024
- Women26256%
- Men20844%
Chronic conditions among Dr. Chase's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis47%
- Anxiety23%
- Ischemic heart disease21%
- Mood disorders21%
- Diabetes20%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chase's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert A. Chase wrote 469 Medicare Part D claims in 2024
In 2024, Dr. Chase wrote 469 Medicare Part D claims for 162 patients. 100% of them were for generic drugs. CMS names the drug for 407 of them, across 13 drugs with 11 or more claims each, at $9,559 in total drug cost. In 2023, CMS named 391 claims across 11 drugs.
Dr. Chase's Part D claims by kind of drug, 2024
- Generic468 claims100%
- Brand-name and other1 claims0%
Dr. Chase'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. Chase's Part D claims, 2024
- Opioids3%13 of 469 claims
- Antibiotics7%33 of 469 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: 3912024: 4074%
Drugs named by CMS: 13 in 2024, 11 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
How Dr. Robert A. Chase takes part in Medicare
Dr. Chase 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. Robert A. Chase received $431 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Chase from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Intersect ENT, Inc. paid the most, $303.
General payments to Dr. Chase by program year, 2016 to 2025
Companies that paid Dr. Chase 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. Robert A. Chase has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chase.
Awards and honors for Dr. Chase
- Undated
- AAO-HNS Fellow
Source: Dmand AI Professional Profile Data
Dr. Robert A. Chase graduated from SUNY Downstate Health Sciences University
Dr. Chase graduated from SUNY Downstate Health Sciences University in 1977. Dr. Chase is a member of NHS.
- Medical school
- Board certified in otolaryngology
Source: Dmand AI Professional Profile Data
Dr. Robert A. Chase accepts plans from 13 insurance carriers
Dr. Chase is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Chase accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert A. Chase'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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Robert A. Chase
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. Robert A. Chase's NPI number?
Dr. Robert A. Chase's NPI number is 1487757779. It was assigned on September 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Chase?
Dr. Robert A. Chase is an otolaryngologist in Placerville, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Robert A. Chase practice?
Dr. Chase practices at 1100 Marshall Way, Placerville, CA 95667. Dr. Chase's primary practice is Marshall Medical in Placerville, California, part of Marshall Medical Center. Dmand AI also links Dr. Chase to 1 group practice or clinic.
What is Dr. Robert A. Chase's office phone number?
The practice phone on file for Dr. Chase is (530) 622-1441.
What is Dr. Robert A. Chase's medical license number?
Dr. Chase's California license number on file is G74828, one of the licenses on file in 5 states.
Which states has Dr. Robert A. Chase been licensed in?
Dmand AI has state licenses on file for Dr. Chase in California (1992 to 2025), Nevada (1992 to 2017), Colorado (1989 to 1999), New York (1978 to 1997) and Vermont (1989 to 1996).
Which hospitals is Dr. Robert A. Chase affiliated with?
Dr. Chase practices at Marshall Medical in Placerville, California. Dr. Chase is also affiliated with UC Davis Medical Center.
What medical group is Dr. Robert A. Chase part of?
Dr. Chase is linked to Marshall Medical Center.
Does Dr. Robert A. Chase accept Medicare?
Yes. CMS data shows Dr. Chase billed Medicare for 775 services in 2024, and Dr. Chase accepts Medicare assignment.
How many Medicare patients does Dr. Robert A. Chase see?
CMS counts 470 Medicare patients who saw Dr. Chase in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
Is Dr. Robert A. Chase board certified?
Yes. Dr. Chase is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.
What services does Dr. Robert A. Chase bill to Medicare?
In 2024, Dr. Chase's most billed Medicare services were surgery: ear (69210), office visit, established patient (99213) and office visit, new patient (99203).
Where did Dr. Robert A. Chase go to medical school?
Dr. Chase graduated from SUNY Downstate Health Sciences University in 1977.
What drugs does Dr. Robert A. Chase prescribe most?
In 2024 Medicare Part D data, Dr. Chase's most prescribed drugs by claims were Ipratropium Bromide, Fluticasone Propionate and Azelastine HCl.
Has Dr. Robert A. Chase received payments from drug or device companies?
CMS Open Payments shows $431 in general payments to Dr. Chase from 5 companies from 2016 to 2025. The largest total came from Intersect ENT, Inc.
How long has Dr. Robert A. Chase been practicing?
Dr. Chase graduated from medical school in 1977, 49 years ago.
What insurance does Dr. Robert A. Chase accept?
Dr. Chase is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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