Dr. Gregory Taylor Michas, DO
- Medicare services, 2024
- 2,076
- Medicare patients, 2024
- 173
- Part D claims, 2024
- 3,466
- Hospital affiliations
- 1
- Industry payments
- $6,767
- Practice address
- 3100 Oak Rd, Walnut Creek, CA 94597
- Practice phone
- Call (925) 944-9711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comprehensive Psychiatric Services, a Medical Group
Walnut Creek, California
Find Dr. Michas' professional email, personal email and mobile number
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Dr. Gregory Taylor Michas is a psychiatrist in Walnut Creek, California
Dr. Michas practices at Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California.
Dr. Michas' NPI, 1285039651, was assigned on October 28, 2014. Dr. Michas graduated from WesternU College of Osteopathic Medicine of the Pacific in 2013. Dr. Michas holds California license 20A15586.
- NPI
- 1285039651NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486922044
- NPI enumeration date
- October 28, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 944-9711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Taylor Michas practices at Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California
Dr. Michas' primary practice is Comprehensive Psychiatric Services, a Medical Group, at 3100 Oak Rd, Walnut Creek, CA 94597 in Contra Costa County. The practice phone is (925) 944-9711.
- Comprehensive Psychiatric Services, a Medical Group3100 Oak Rd, Walnut Creek, CA 94597 · Contra Costa CountyPhone(925) 944-9711
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Taylor Michas is affiliated with 3 sites of care and 2 medical groups
Dr. Michas' primary practice is Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California. Dr. Michas is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is CEP America. Dmand AI also links Dr. Michas to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Taylor Michas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Michas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comprehensive Psychiatric Services, a Medical Group | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Taylor Michas is one of 6,803 psychiatrists in California
Psychiatry is Dr. Michas' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Michas is board certified in psychiatry by the AOA Board of Neurology and Psychiatry. Dmand AI has Dr. Michas' licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists ADHD, adjustment disease, alcohol use disorders, anxiety, bipolar disorder, depression, drug use disorders and insomnia among the conditions Dr. Michas treats.
Psychiatrists near Dr. Michas
Counts of psychiatrists 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. Gregory Taylor Michas billed Medicare for 2,076 services in 2024
CMS data shows 2,076 Medicare services from Dr. Michas across 5 procedure codes in 2024, for 173 Medicare patients. Medicare paid $172,667 for them. Every service was in an office.
Dr. Michas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8772024: 1,11127%
- Office and hospital visits
- 2023: 8142024: 96519%
Dr. Michas compared with the California median for psychiatrists, 2024
- Dr. Michas
- California median
- Medicare services
- 2,076vs 11917.4 times
- Medicare patients
- 173vs 414.2 times
- Part D claims
- 3,340vs 14423.2 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Michas' 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. Michas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Michas and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Taylor Michas treated 173 Medicare patients in 2024, average age 71
CMS counts 173 Medicare patients who saw Dr. Michas in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have mood disorders, and 74% have depression. 15% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Michas' median patient age at 55, with 50% women.
Dr. Michas' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Michas' Medicare patients by sex, 2024
- Women9655%
- Men7745%
Chronic conditions among Dr. Michas' Medicare patients, 2024
- Mood disorders75%
- Depression74%
- High cholesterol73%
- High blood pressure65%
- Anxiety57%
- Arthritis47%
- Chronic kidney disease24%
- Bipolar disorder23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Michas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women50%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Taylor Michas wrote 3,466 Medicare Part D claims in 2024
In 2024, Dr. Michas wrote 3,466 Medicare Part D claims for 221 patients. 97% of them were for generic drugs. CMS names the drug for 3,340 of them, across 52 drugs with 11 or more claims each, at $350,139 in total drug cost. In 2023, CMS named 3,059 claims across 55 drugs.
Dr. Michas' Part D claims by kind of drug, 2024
- Generic3,352 claims97%
- Brand-name114 claims3%
Dr. Michas' 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. Michas' Part D claims, 2024
- Antipsychotics, patients 65 and over6%215 of 3,466 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: 3,0592024: 3,3409%
Drugs named by CMS: 52 in 2024, 55 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. Gregory Taylor Michas offers telehealth to Medicare patients
Dr. Michas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Michas as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Taylor Michas received $6,767 in industry payments from 2016 to 2025
CMS Open Payments shows 372 general payments to Dr. Michas from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Ironshore Pharmaceuticals Inc. paid the most, $1,192.
General payments to Dr. Michas by program year, 2016 to 2025
General payments to Dr. Michas by kind, 2016 to 2025
- Food and beverage$6,60098%
- Education$1672%
Companies that paid Dr. Michas 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. Gregory Taylor Michas graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Michas graduated from WesternU College of Osteopathic Medicine of the Pacific in 2013. Dr. Michas is a member of AOA.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Gregory Taylor Michas accepts plans from 8 insurance carriers
Dr. Michas is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Humana
- Kaiser Permanente
Plan types Dr. Michas accepts, by number of carriers
- Medicare7
- PPO5
- HMO2
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Taylor Michas'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| 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. Gregory Taylor Michas
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. Gregory Taylor Michas' NPI number?
Dr. Gregory Taylor Michas' NPI number is 1285039651. It was assigned on October 28, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Taylor Michas?
Dr. Gregory Taylor Michas is a psychiatrist in Walnut Creek, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Gregory Taylor Michas practice?
Dr. Michas practices at 3100 Oak Rd, Walnut Creek, CA 94597. Dr. Michas' primary practice is Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California. Dmand AI also links Dr. Michas to 1 group practice or clinic and 1 medical group.
What is Dr. Gregory Taylor Michas' office phone number?
The practice phone on file for Dr. Michas is (925) 944-9711.
What is Dr. Gregory Taylor Michas' medical license number?
Dr. Michas holds California license 20A15586, one of the licenses on file in 2 states.
Which states has Dr. Gregory Taylor Michas been licensed in?
Dmand AI has state licenses on file for Dr. Michas in California (2017 to 2026) and Florida (2015 to 2018).
Which hospitals is Dr. Gregory Taylor Michas affiliated with?
Dr. Michas is affiliated with John Muir Medical Center, Walnut Creek.
What medical group is Dr. Gregory Taylor Michas part of?
Dr. Michas is linked to CEP America. Dmand AI links Dr. Michas to 1 more medical group.
Does Dr. Gregory Taylor Michas accept Medicare?
Yes. CMS data shows Dr. Michas billed Medicare for 2,076 services in 2024, and Dr. Michas accepts Medicare assignment.
Does Dr. Gregory Taylor Michas offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Michas as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Gregory Taylor Michas see?
CMS counts 173 Medicare patients who saw Dr. Michas in 2024, with an average age of 71.
Is Dr. Gregory Taylor Michas board certified?
Yes. Dr. Michas is board certified in psychiatry by the AOA Board of Neurology and Psychiatry.
What services does Dr. Gregory Taylor Michas bill to Medicare?
In 2024, Dr. Michas' most billed Medicare services were psychiatric service (90833), office visit, established patient (99214) and psychiatric service (90785).
Where did Dr. Gregory Taylor Michas go to medical school?
Dr. Michas graduated from WesternU College of Osteopathic Medicine of the Pacific in 2013.
What drugs does Dr. Gregory Taylor Michas prescribe most?
In 2024 Medicare Part D data, Dr. Michas' most prescribed drugs by claims were Trazodone HCl, Bupropion XL and Lorazepam.
Has Dr. Gregory Taylor Michas received payments from drug or device companies?
CMS Open Payments shows $6,767 in general payments to Dr. Michas from 25 companies from 2016 to 2025. The largest total came from Ironshore Pharmaceuticals Inc.
How long has Dr. Gregory Taylor Michas been practicing?
Dr. Michas graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Gregory Taylor Michas accept?
Dr. Michas is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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