Dr. Guido A. Macchiavello, MD
- Medicare services, 2024
- 27
- Medicare patients, 2024
- 28
- Part D claims, 2024
- 4,999
- Industry payments
- $6,992
- Medical group
- 1
- Practice address
- 101 W Avenida Vista Hermosa, San Clemente, CA 92672
- Practice phone
- Call (949) 891-0328
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Crossover Health Medical Group
San Clemente, California
Find Dr. Macchiavello'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. Guido A. Macchiavello is a hospitalist in San Clemente, California
Dr. Macchiavello practices at Crossover Health Medical Group in San Clemente, California.
Dr. Macchiavello's NPI, 1912191347, was assigned on August 29, 2007. Dr. Macchiavello graduated from Pontifical Catholic University of Ecuador in 2004. Dr. Macchiavello holds New York license 271054.
- NPI
- 1912191347NPI Registry (opens in a new tab)
- NPI enumeration date
- August 29, 2007
- NPI status
- Active
- Practice phone
- (949) 891-0328
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Guido A. Macchiavello practices at Crossover Health Medical Group in San Clemente, California
Dr. Macchiavello's primary practice is Crossover Health Medical Group, at 101 W Avenida Vista Hermosa, San Clemente, CA 92672 in Orange County. The practice phone is (949) 891-0328.
- Crossover Health Medical Group101 W Avenida Vista Hermosa, San Clemente, CA 92672 · Orange CountyPhone(949) 891-0328
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Guido A. Macchiavello is affiliated with 1 site of care and 1 medical group
Dr. Macchiavello's primary practice is Crossover Health Medical Group in San Clemente, California. The medical group on file is Mount Sinai Institute for Liver Medicine.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Guido A. Macchiavello's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Macchiavello practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Crossover Health Medical Group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Guido A. Macchiavello is one of 3,186 hospitalists in California
Hospitalist is Dr. Macchiavello's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Macchiavello is licensed in New York.
Specialties and state licenses
- Hospitalist, New YorkPrimary
Hospitalists near Dr. Macchiavello
Counts of hospitalists 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. Guido A. Macchiavello billed Medicare for 27 services in 2024
CMS data shows 27 Medicare services from Dr. Macchiavello across 1 procedure code in 2024, all of them office visits, for 28 Medicare patients. Medicare paid $1,840 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Macchiavello's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 672024: 2760%
Dr. Macchiavello compared with the California median for hospitalists, 2024
- Dr. Macchiavello
- California median
- Medicare services
- 27vs 43094% below
- Medicare patients
- 28vs 20186% below
- Part D claims
- 4,393vs 6963.7 times
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Macchiavello'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Guido A. Macchiavello treated 28 Medicare patients in 2024, average age 66
CMS counts 28 Medicare patients who saw Dr. Macchiavello in 2024. The largest group is 65 to 74, with 13 patients. 71% of them have high blood pressure, and 71% have high cholesterol. Their average risk score is 1.60, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Macchiavello's median patient age at 34, with 36% women.
Dr. Macchiavello's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Macchiavello's Medicare patients by sex, 2024
- Women1346%
- Men1554%
Chronic conditions among Dr. Macchiavello's Medicare patients, 2024
- High blood pressure71%
- High cholesterol71%
- Diabetes43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Macchiavello's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women36%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Guido A. Macchiavello wrote 4,999 Medicare Part D claims in 2024
In 2024, Dr. Macchiavello wrote 4,999 Medicare Part D claims for 415 patients. 74% of them were for generic drugs. CMS names the drug for 4,393 of them, across 87 drugs with 11 or more claims each, at $604,733 in total drug cost. In 2023, CMS named 2,967 claims across 70 drugs.
Dr. Macchiavello's Part D claims by kind of drug, 2024
- Generic3,722 claims74%
- Brand-name1,112 claims22%
- Other165 claims3%
Dr. Macchiavello'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. Macchiavello's Part D claims, 2024
- Opioids0%22 of 4,999 claims
- Antibiotics0%18 of 4,999 claims
- Antipsychotics, patients 65 and over0%18 of 4,999 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: 2,9672024: 4,39348%
Drugs named by CMS: 87 in 2024, 70 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
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Dr. Guido A. Macchiavello received $6,992 in industry payments from 2016 to 2025
CMS Open Payments shows 278 general payments to Dr. Macchiavello from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $2,124.
General payments to Dr. Macchiavello by program year, 2016 to 2025
General payments to Dr. Macchiavello by kind, 2016 to 2025
- Food and beverage$6,982100%
- Education$110%
Companies that paid Dr. Macchiavello 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. Guido A. Macchiavello graduated from Pontifical Catholic University of Ecuador
Dr. Macchiavello graduated from Pontifical Catholic University of Ecuador in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Guido A. Macchiavello'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Guido A. Macchiavello
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. Guido A. Macchiavello's NPI number?
Dr. Guido A. Macchiavello's NPI number is 1912191347. It was assigned on August 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Guido A. Macchiavello?
Dr. Guido A. Macchiavello is a hospitalist in San Clemente, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Guido A. Macchiavello practice?
Dr. Macchiavello practices at 101 W Avenida Vista Hermosa, San Clemente, CA 92672. Dr. Macchiavello's primary practice is Crossover Health Medical Group in San Clemente, California.
What is Dr. Guido A. Macchiavello's office phone number?
The practice phone on file for Dr. Macchiavello is (949) 891-0328.
What is Dr. Guido A. Macchiavello's medical license number?
Dr. Macchiavello holds New York license 271054.
What medical group is Dr. Guido A. Macchiavello part of?
Dr. Macchiavello is linked to Mount Sinai Institute for Liver Medicine.
Does Dr. Guido A. Macchiavello accept Medicare?
Yes. CMS data shows Dr. Macchiavello billed Medicare for 27 services in 2024.
How many Medicare patients does Dr. Guido A. Macchiavello see?
CMS counts 28 Medicare patients who saw Dr. Macchiavello in 2024, with an average age of 66.
What services does Dr. Guido A. Macchiavello bill to Medicare?
In 2024, Dr. Macchiavello's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Guido A. Macchiavello go to medical school?
Dr. Macchiavello graduated from Pontifical Catholic University of Ecuador in 2004.
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What drugs does Dr. Guido A. Macchiavello prescribe most?
In 2024 Medicare Part D data, Dr. Macchiavello's most prescribed drugs by claims were Atorvastatin Calcium, Albuterol Sulfate Hfa and Lisinopril.
Has Dr. Guido A. Macchiavello received payments from drug or device companies?
CMS Open Payments shows $6,992 in general payments to Dr. Macchiavello from 25 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Guido A. Macchiavello been practicing?
Dr. Macchiavello graduated from medical school in 2004, 22 years ago.
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