Dr. David A. Greene, MD
- Medicare services, 2024
- 349
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 1,383
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 2185 N California Blvd, Walnut Creek, CA 94596
- Practice phone
- Call (707) 538-8400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Covia Communities
Walnut Creek, California
Find Dr. Greene'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. David A. Greene is a geriatric medicine (internal medicine) physician in Walnut Creek, California
Dr. Greene practices at Covia Communities in Walnut Creek, California.
Dr. Greene's NPI, 1104802594, was assigned on December 19, 2005. Dr. Greene graduated from College of Human Medicine - Grand Rapids in 1978. Dr. Greene holds California license C148038.
- NPI
- 1104802594NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486796729
- NPI enumeration date
- December 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 538-8400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David A. Greene practices at Covia Communities in Walnut Creek, California
Dr. Greene's primary practice is Covia Communities, at 2185 N California Blvd, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (707) 538-8400.
- Covia Communities2185 N California Blvd, Walnut Creek, CA 94596 · Contra Costa CountyPhone(707) 538-8400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David A. Greene is affiliated with 2 sites of care
Dr. Greene's primary practice is Covia Communities in Walnut Creek, California. Dr. Greene is also affiliated with Providence Santa Rosa Memorial Hospital.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David A. Greene's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greene practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Covia Communities | 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. David A. Greene is one of 497 geriatric medicine (internal medicine) physicians in California
Geriatric medicine is Dr. Greene's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Greene is board certified in geriatric medicine by the American Board of Internal Medicine. Dmand AI has Dr. Greene's licenses on file in 3 states: California, Kentucky and Texas.
Specialties and state licenses
- Geriatric medicine (internal medicine), CaliforniaPrimary
- Internal medicine, Kentucky
- Texas license
Clinical focus
Dmand AI lists acid reflux, acute skin infection, adjustment disease, alzheimer's disease, arthritis, asthma, atrial fibrillation and flutter and chronic anemia among the conditions Dr. Greene treats.
Geriatric medicine (internal medicine) physicians near Dr. Greene
Counts of geriatric medicine (internal medicine) physicians 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. David A. Greene billed Medicare for 349 services in 2024
CMS data shows 349 Medicare services from Dr. Greene across 2 procedure codes in 2024, all of them office visits, for 98 Medicare patients. Medicare paid $27,682 for them. Every service was in an office.
Dr. Greene's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3402024: 3493%
Dr. Greene compared with the California median for geriatric medicine (internal medicine) physicians, 2024
- Dr. Greene
- California median
- Medicare services
- 349vs 42418% below
- Medicare patients
- 98vs 17845% below
- Part D claims
- 1,022vs 93010% above
Medians across 466 geriatric medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Greene'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. Greene?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greene and other geriatric medicine (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David A. Greene treated 98 Medicare patients in 2024, average age 88
CMS counts 98 Medicare patients who saw Dr. Greene in 2024. The largest group is 85 and over, with 66 patients. 75% of them have high blood pressure, and 61% have high cholesterol. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Greene's median patient age at 89, with 74% women.
Dr. Greene's Medicare patients by age, 2024
Dr. Greene's Medicare patients by sex, 2024
- Women7779%
- Men2121%
Chronic conditions among Dr. Greene's Medicare patients, 2024
- High blood pressure75%
- High cholesterol61%
- Arthritis47%
- Chronic kidney disease39%
- Atrial fibrillation36%
- Mood disorders32%
- Depression30%
- Osteoporosis29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greene's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 89
Patient panel by sex, all payers
- Women74%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David A. Greene wrote 1,383 Medicare Part D claims in 2024
In 2024, Dr. Greene wrote 1,383 Medicare Part D claims for 118 patients. 84% of them were for generic drugs. CMS names the drug for 1,022 of them, across 38 drugs with 11 or more claims each, at $121,616 in total drug cost. In 2023, CMS named 1,497 claims across 50 drugs.
Dr. Greene's Part D claims by kind of drug, 2024
- Generic1,160 claims84%
- Brand-name223 claims16%
Dr. Greene'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. Greene's Part D claims, 2024
- Opioids1%13 of 1,383 claims
- Antibiotics2%24 of 1,383 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: 1,4972024: 1,02232%
Drugs named by CMS: 38 in 2024, 50 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. David A. Greene takes part in Medicare
Dr. Greene accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David A. Greene has 3 publications on record
Dmand AI links 3 papers to Dr. Greene, published from 2006 to 2011. The most frequent topics are Absorptiometry, Photon, Adaptation, Physiological and Femur.
Dr. Greene's papers by year, 2006 to 2011
Topics Dr. Greene writes about most
- Absorptiometry, Photon
- Adaptation, Physiological
- Femur
Recent publications by Dr. Greene
J Sci Med Sport
See who Dr. Greene researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greene works with, so you can find a warm path to the right geriatric medicine (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David A. Greene received $397 in industry payments from 2016 to 2025
CMS Open Payments shows 7 general payments to Dr. Greene from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. STRATA Skin Sciences, Inc. paid the most, $119.
General payments to Dr. Greene by program year, 2016 to 2025
Companies that paid Dr. Greene 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. David A. Greene graduated from College of Human Medicine - Grand Rapids
Dr. Greene graduated from College of Human Medicine - Grand Rapids in 1978. Dr. Greene is a member of ACP.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. David A. Greene accepts plans from 13 insurance carriers
Dr. Greene is in network with 13 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Aetna
- Alliant Health Plans
- Blue Cross Blue Shield of Michigan
- HCSC
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +5 more carriersWith a free account
Plan types Dr. Greene accepts, by number of carriers
- PPO8
- HMO6
- EPO3
- POS3
- Medicare2
Source: Dmand AI Insurance Network Data
Sources for Dr. David A. Greene'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David A. Greene
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. David A. Greene's NPI number?
Dr. David A. Greene's NPI number is 1104802594. It was assigned on December 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Greene?
Dr. David A. Greene is a geriatric medicine (internal medicine) physician in Walnut Creek, California. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).
Where does Dr. David A. Greene practice?
Dr. Greene practices at 2185 N California Blvd, Walnut Creek, CA 94596. Dr. Greene's primary practice is Covia Communities in Walnut Creek, California.
What is Dr. David A. Greene's office phone number?
The practice phone on file for Dr. Greene is (707) 538-8400.
What is Dr. David A. Greene's medical license number?
Dr. Greene holds California license C148038, one of the licenses on file in 3 states.
Which states has Dr. David A. Greene been licensed in?
Dmand AI has state licenses on file for Dr. Greene in California (2017 to 2026), Kentucky (1980 to 2018) and Texas (1979 to 1988).
Which hospitals is Dr. David A. Greene affiliated with?
Dr. Greene is affiliated with Providence Santa Rosa Memorial Hospital.
Does Dr. David A. Greene accept Medicare?
Yes. CMS data shows Dr. Greene billed Medicare for 349 services in 2024, and Dr. Greene accepts Medicare assignment.
How many Medicare patients does Dr. David A. Greene see?
CMS counts 98 Medicare patients who saw Dr. Greene in 2024, with an average age of 88.
Is Dr. David A. Greene board certified?
Yes. Dr. Greene is board certified in geriatric medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. David A. Greene bill to Medicare?
In 2024, Dr. Greene's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. David A. Greene go to medical school?
Dr. Greene graduated from College of Human Medicine - Grand Rapids in 1978.
What drugs does Dr. David A. Greene prescribe most?
In 2024 Medicare Part D data, Dr. Greene's most prescribed drugs by claims were Levothyroxine Sodium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. David A. Greene received payments from drug or device companies?
CMS Open Payments shows $397 in general payments to Dr. Greene from 7 companies from 2016 to 2025. The largest total came from STRATA Skin Sciences, Inc.
How long has Dr. David A. Greene been practicing?
Dr. Greene graduated from medical school in 1978, 48 years ago.
Does Dr. David A. Greene do research?
Dmand AI links 3 publications to Dr. Greene, published from 2006 to 2011.
What insurance does Dr. David A. Greene accept?
Dr. Greene is in network with 13 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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