Dr. Michael C. Chase, MD
- Medicare services, 2024
- 826
- Medicare patients, 2024
- 408
- Part D claims, 2024
- 2,066
- MIPS score, 2024
- 81
- Hospital affiliations
- 2
- Practice address
- 250 Bon Air Road, Greenbrae, CA 94904
- Practice phone
- Call (415) 925-7900
- 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. Michael C. Chase is an internist in Greenbrae, California
Dr. Chase practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.
Dr. Chase's NPI, 1457423105, was assigned on November 15, 2006. Dr. Chase graduated from New York Medical College in 1972. Dr. Chase holds California license G25829.
- NPI
- 1457423105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365580149
- NPI enumeration date
- November 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 925-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael C. Chase practices at MarinHealth Medical Center in Greenbrae, California
Dr. Chase's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.
- MarinHealth Medical Center250 Bon Air Road, Greenbrae, CA 94904 · Marin CountyPhone(415) 925-7900
Source: Dmand AI Affiliation Data
Dr. Michael C. Chase is affiliated with 6 sites of care and 1 medical group
Dr. Chase's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dr. Chase is also affiliated with Novato Community Hospital. The medical group on file is UCSF Medical Group. Dmand AI also links Dr. Chase to 3 more home health agencies 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. Michael C. Chase's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chase practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MarinHealth Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael C. Chase is one of 16,751 internists in California
Internal medicine is Dr. Chase's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chase is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chase is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute mini-stroke (TIA), acute sinusitis, acute skin infection, alzheimer's disease, asthma and atrial fibrillation and flutter among the conditions Dr. Chase treats.
Internists near Dr. Chase
Counts of internists 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. Michael C. Chase billed Medicare for 826 services in 2024
CMS data shows 826 Medicare services from Dr. Chase across 10 procedure codes in 2024, for 408 Medicare patients. Medicare paid $82,008 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: 5352024: 61916%
- Other services
- 2023: 682024: 179163%
- Tests and treatments
- 2023: 162024: 2875%
- Lab and pathology
- 2023: 132024: 0100%
Dr. Chase compared with the California median for internists, 2024
- Dr. Chase
- California median
- Medicare services
- 826vs 3612.3 times
- Medicare patients
- 408vs 1512.7 times
- Part D claims
- 1,610vs 4213.8 times
Medians across 15,815 internists 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chase and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael C. Chase treated 408 Medicare patients in 2024, average age 77
CMS counts 408 Medicare patients who saw Dr. Chase in 2024. The largest group is 75 to 84, with 175 patients. 75% of them have high cholesterol, and 61% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chase's median patient age at 75, with 53% women.
Dr. Chase's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chase's Medicare patients by sex, 2024
- Women22655%
- Men18245%
Chronic conditions among Dr. Chase's Medicare patients, 2024
- High cholesterol75%
- High blood pressure61%
- Arthritis41%
- Osteoporosis37%
- Chronic kidney disease24%
- Ischemic heart disease23%
- Mood disorders22%
- Anxiety19%
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 75
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael C. Chase wrote 2,066 Medicare Part D claims in 2024
In 2024, Dr. Chase wrote 2,066 Medicare Part D claims for 630 patients. 88% of them were for generic drugs. CMS names the drug for 1,610 of them, across 53 drugs with 11 or more claims each, at $119,391 in total drug cost. In 2023, CMS named 2,895 claims across 62 drugs.
Dr. Chase's Part D claims by kind of drug, 2024
- Generic1,828 claims88%
- Brand-name and other238 claims12%
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
- Opioids2%33 of 2,066 claims
- Antibiotics2%46 of 2,066 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: 2,8952024: 1,61044%
Drugs named by CMS: 53 in 2024, 62 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. Michael C. Chase scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Chase for performance year 2024. Dr. Chase accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chase as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chase's MIPS scores, performance year 2024
- 81of 100Final score
- 80.9of 100Quality
- 76of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael C. Chase received $5,593 in industry payments from 2016 to 2021
CMS Open Payments shows 327 general payments to Dr. Chase from 32 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 99% of the total. Amgen Inc. paid the most, $980.
General payments to Dr. Chase by program year, 2016 to 2021
General payments to Dr. Chase by kind, 2016 to 2021
- Food and beverage$5,54999%
- Education$441%
Companies that paid Dr. Chase the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael C. Chase has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chase, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Chase
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Michael C. Chase graduated from New York Medical College
Dr. Chase graduated from New York Medical College in 1972. Dr. Chase is a member of Marin Medical Society.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Michael C. Chase accepts plans from 8 insurance carriers
Dr. Chase is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Humana
Plan types Dr. Chase accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael C. 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Michael C. 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. Michael C. Chase's NPI number?
Dr. Michael C. Chase's NPI number is 1457423105. It was assigned on November 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael C. Chase?
Dr. Michael C. Chase is an internist in Greenbrae, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael C. Chase practice?
Dr. Chase practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Chase's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dmand AI also links Dr. Chase to 3 home health agencies and 1 group practice or clinic.
What is Dr. Michael C. Chase's office phone number?
The practice phone on file for Dr. Chase is (415) 925-7900.
What is Dr. Michael C. Chase's medical license number?
Dr. Chase holds California license G25829.
Which hospitals is Dr. Michael C. Chase affiliated with?
Dr. Chase practices at MarinHealth Medical Center in Greenbrae, California. Dr. Chase is also affiliated with Novato Community Hospital.
What medical group is Dr. Michael C. Chase part of?
Dr. Chase is linked to UCSF Medical Group.
Does Dr. Michael C. Chase accept Medicare?
Yes. CMS data shows Dr. Chase billed Medicare for 826 services in 2024, and Dr. Chase accepts Medicare assignment.
Does Dr. Michael C. Chase offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chase as offering telehealth services.
What is Dr. Michael C. Chase's MIPS score?
Dr. Chase's MIPS final score for performance year 2024 is 81 out of 100.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Michael C. Chase see?
CMS counts 408 Medicare patients who saw Dr. Chase in 2024, with an average age of 77.
Is Dr. Michael C. Chase board certified?
Yes. Dr. Chase is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Michael C. Chase bill to Medicare?
In 2024, Dr. Chase's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Michael C. Chase go to medical school?
Dr. Chase graduated from New York Medical College in 1972.
What drugs does Dr. Michael C. Chase prescribe most?
In 2024 Medicare Part D data, Dr. Chase's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Michael C. Chase received payments from drug or device companies?
CMS Open Payments shows $5,593 in general payments to Dr. Chase from 32 companies from 2016 to 2021. The largest total came from Amgen Inc.
How long has Dr. Michael C. Chase been practicing?
Dr. Chase graduated from medical school in 1972, 54 years ago.
What insurance does Dr. Michael C. Chase accept?
Dr. Chase is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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