Dr. Elpidio C. Mariano, MD
- Medicare services, 2022
- 24
- Medicare patients, 2024
- 26
- Part D claims, 2016
- 13
- Hospital affiliations
- 1
- Industry payments
- $18
- Practice address
- 400 N McDowell Blvd, Petaluma, CA 94954
- Practice phone
- Call (707) 778-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mariano'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. Elpidio C. Mariano is a general surgeon in Petaluma, California
Dr. Mariano practices at Petaluma Valley Hospital in Petaluma, California, part of Providence Health & Services.
Dr. Mariano's NPI, 1063524528, was assigned on August 31, 2006. Dr. Mariano graduated from University of Santo Tomas in 1971. Dr. Mariano holds California license A39817.
- NPI
- 1063524528NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537356506
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 778-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Elpidio C. Mariano practices at Petaluma Valley Hospital in Petaluma, California
Dr. Mariano's primary practice is Petaluma Valley Hospital, at 400 N McDowell Blvd, Petaluma, CA 94954 in Sonoma County. The practice phone is (707) 778-1111.
- Petaluma Valley Hospital400 N McDowell Blvd, Petaluma, CA 94954 · Sonoma CountyPhone(707) 778-1111
Source: Dmand AI Affiliation Data
Dr. Elpidio C. Mariano is affiliated with 3 sites of care and 1 medical group
Dr. Mariano's primary practice is Petaluma Valley Hospital in Petaluma, California, part of Providence Health & Services. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Mariano to 1 more breast imaging center 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. Elpidio C. Mariano's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mariano practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Petaluma Valley Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Elpidio C. Mariano is one of 2,926 general surgeons in California
Surgery is Dr. Mariano's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Mariano is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Mariano
Counts of general surgeons 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. Elpidio C. Mariano billed Medicare for 24 services in 2022
CMS data shows 24 Medicare services from Dr. Mariano across 2 procedure codes in 2022, for 26 Medicare patients. Medicare paid $2,071 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mariano's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Surgery
- 2021: 242022: 24No change
Dr. Mariano compared with the California median for general surgeons, 2022
- Dr. Mariano
- California median
- Medicare services
- 24vs 16686% below
- Medicare patients
- 26vs 12179% below
- Part D claims
- 13vs 3462% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Mariano's most billed Medicare procedure codes, 2022
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. Mariano and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Elpidio C. Mariano treated 26 Medicare patients in 2024, average age 75
CMS counts 26 Medicare patients who saw Dr. Mariano in 2024. The largest group is 75 to 84, with 12 patients. 73% of them have arthritis, and 69% have high blood pressure. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mariano's median patient age at 64, with 57% women.
Dr. Mariano's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mariano's Medicare patients by sex, 2024
- Women1558%
- Men1142%
Chronic conditions among Dr. Mariano's Medicare patients, 2024
- Arthritis73%
- High blood pressure69%
- High cholesterol65%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mariano's 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
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Elpidio C. Mariano wrote 13 Medicare Part D claims in 2016
In 2016, Dr. Mariano wrote 13 Medicare Part D claims. They cover 1 drug, with $156 in total drug cost.
Dr. Mariano's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Elpidio C. Mariano ranks in the 41st percentile for knee replacement in Medicare
Dr. Mariano accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of knee replacement by Dr. Mariano, more than 41% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mariano ranks in Medicare procedure volume
- Knee replacement
- 41st percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 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. Elpidio C. Mariano received $18 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Mariano from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. TELA Bio, Inc. paid the most, $18.
Companies that paid Dr. Mariano the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Elpidio C. Mariano has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Mariano, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Mariano
- 2012
- CMS Stage 1 EHR
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Elpidio C. Mariano graduated from University of Santo Tomas
Dr. Mariano graduated from University of Santo Tomas in 1971. Dr. Mariano is a member of ACS.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Elpidio C. Mariano accepts plans from 14 insurance carriers
Dr. Mariano is in network with 14 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Dr. Mariano accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Elpidio C. Mariano'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) |
| 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) |
| 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. Elpidio C. Mariano
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. Elpidio C. Mariano's NPI number?
Dr. Elpidio C. Mariano's NPI number is 1063524528. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Elpidio C. Mariano?
Dr. Elpidio C. Mariano is a general surgeon in Petaluma, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Elpidio C. Mariano practice?
Dr. Mariano practices at 400 N McDowell Blvd, Petaluma, CA 94954. Dr. Mariano's primary practice is Petaluma Valley Hospital in Petaluma, California, part of Providence Health & Services. Dmand AI also links Dr. Mariano to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Elpidio C. Mariano's office phone number?
The practice phone on file for Dr. Mariano is (707) 778-1111.
What is Dr. Elpidio C. Mariano's medical license number?
Dr. Mariano holds California license A39817.
Which hospitals is Dr. Elpidio C. Mariano affiliated with?
Dr. Mariano practices at Petaluma Valley Hospital in Petaluma, California.
What medical group is Dr. Elpidio C. Mariano part of?
Dr. Mariano is linked to St. Jude Heritage Medical Group.
Does Dr. Elpidio C. Mariano accept Medicare?
Yes. CMS data shows Dr. Mariano billed Medicare for 24 services in 2022, and Dr. Mariano accepts Medicare assignment.
How many Medicare patients does Dr. Elpidio C. Mariano see?
CMS counts 26 Medicare patients who saw Dr. Mariano in 2024, with an average age of 75.
What services does Dr. Elpidio C. Mariano bill to Medicare?
In 2022, Dr. Mariano's most billed Medicare services were surgery: bones and joints (29826) and surgery: bones and joints (29827).
Show 5 more questionsShow fewer questions
Where did Dr. Elpidio C. Mariano go to medical school?
Dr. Mariano graduated from University of Santo Tomas in 1971.
What drugs does Dr. Elpidio C. Mariano prescribe most?
In 2016 Medicare Part D data, Dr. Mariano's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Elpidio C. Mariano received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Mariano from 1 company from 2017 to 2017. The largest total came from TELA Bio, Inc.
How long has Dr. Elpidio C. Mariano been practicing?
Dr. Mariano graduated from medical school in 1971, 55 years ago.
What insurance does Dr. Elpidio C. Mariano accept?
Dr. Mariano is in network with 14 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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