Dr. Michael Hirt, MD
- Medicare services, 2019
- 27,393
- Part D claims, 2024
- 5,373
- Hospital affiliations
- 1
- Industry payments
- $197
- State license
- 1
- Practice address
- 751 Medical Center Court, Chula Vista, CA 91911
- Practice phone
- Call (619) 502-5800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hirt's professional email, personal email and mobile number
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Dr. Michael Hirt is an internist in Chula Vista, California
Dr. Hirt practices at Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare.
Dr. Hirt's NPI, 1639279292, was assigned on September 24, 2006. Dr. Hirt graduated from Harvard Medical School in 1993. Dr. Hirt holds California license G81062.
- NPI
- 1639279292NPI Registry (opens in a new tab)
- NPI enumeration date
- September 24, 2006
- NPI status
- Active
- Practice phone
- (619) 502-5800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Michael Hirt practices at Sharp Chula Vista Medical Center in Chula Vista, California
Dr. Hirt's primary practice is Sharp Chula Vista Medical Center, at 751 Medical Center Court, Chula Vista, CA 91911 in San Diego County. The practice phone is (619) 502-5800.
- Sharp Chula Vista Medical Center751 Medical Center Court, Chula Vista, CA 91911 · San Diego CountyPhone(619) 502-5800
Source: Dmand AI Affiliation Data
Dr. Michael Hirt is affiliated with 2 sites of care
Dr. Hirt's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. Dmand AI also links Dr. Hirt to 1 physician office, 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 Hirt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hirt practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Chula Vista Medical Center | 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. Michael Hirt is one of 16,751 internists in California
Internal medicine is Dr. Hirt's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hirt is board certified in internal medicine by the National Board of Physicians and Surgeons. Dr. Hirt is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Hirt
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 Hirt billed Medicare for 27,393 services in 2019
CMS data shows 27,393 Medicare services from Dr. Hirt across 71 procedure codes in 2019. Medicare paid $570,885 for them. Every service was in an office.
Dr. Hirt's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Lab and pathology
- 2018: 25,9012019: 22,35714%
- Surgery
- 2018: 2,1082019: 2,0135%
- Office and hospital visits
- 2018: 2,4512019: 1,94821%
- Tests and treatments
- 2018: 6872019: 52424%
- Other services
- 2018: 4192019: 4024%
- Imaging
- 2018: 2672019: 12952%
- Drugs given in the office
- 2018: 972019: 2079%
Dr. Hirt compared with the California median for internists, 2019
- Dr. Hirt
- California median
- Medicare services
- 27,393vs 36175.9 times
- Part D claims
- 4,698vs 42111.2 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Hirt's most billed Medicare procedure codes, 2019
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. Hirt and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Hirt's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Hirt's median patient age at 66, with 60% women.
Dr. Hirt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women60%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Michael Hirt wrote 5,373 Medicare Part D claims in 2024
In 2024, Dr. Hirt wrote 5,373 Medicare Part D claims for 431 patients. 82% of them were for generic drugs. CMS names the drug for 4,698 of them, across 105 drugs with 11 or more claims each, at $437,413 in total drug cost. In 2023, CMS named 5,054 claims across 113 drugs.
Dr. Hirt's Part D claims by kind of drug, 2024
- Generic4,426 claims82%
- Brand-name798 claims15%
- Other149 claims3%
Dr. Hirt'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. Hirt's Part D claims, 2024
- Opioids1%52 of 5,373 claims
- Antibiotics2%131 of 5,373 claims
- Antipsychotics, patients 65 and over1%32 of 5,373 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: 5,0542024: 4,6987%
Drugs named by CMS: 105 in 2024, 113 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. Michael Hirt received $197 in industry payments from 2016 to 2023
CMS Open Payments shows 12 general payments to Dr. Hirt from 6 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 63% of the total. Romark Laboratories, LC paid the most, $68.
General payments to Dr. Hirt by program year, 2016 to 2023
General payments to Dr. Hirt by kind, 2016 to 2023
- Food and beverage$12463%
- Education$6231%
- Entertainment$126%
Companies that paid Dr. Hirt the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Hirt graduated from Harvard Medical School
Dr. Hirt graduated from Harvard Medical School in 1993.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Hirt'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 Data |
| 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. Michael Hirt
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 Hirt's NPI number?
Dr. Michael Hirt's NPI number is 1639279292. It was assigned on September 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Hirt?
Dr. Michael Hirt is an internist in Chula Vista, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Hirt practice?
Dr. Hirt practices at 751 Medical Center Court, Chula Vista, CA 91911. Dr. Hirt's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. Dmand AI also links Dr. Hirt to 1 physician office.
What is Dr. Michael Hirt's office phone number?
The practice phone on file for Dr. Hirt is (619) 502-5800.
What is Dr. Michael Hirt's medical license number?
Dr. Hirt holds California license G81062.
Which hospitals is Dr. Michael Hirt affiliated with?
Dr. Hirt practices at Sharp Chula Vista Medical Center in Chula Vista, California.
Does Dr. Michael Hirt accept Medicare?
Yes. CMS data shows Dr. Hirt billed Medicare for 27,393 services in 2019.
Is Dr. Michael Hirt board certified?
Yes. Dr. Hirt is board certified in internal medicine by the National Board of Physicians and Surgeons.
What services does Dr. Michael Hirt bill to Medicare?
In 2019, Dr. Hirt's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (85025) and lab and pathology test (80053).
Where did Dr. Michael Hirt go to medical school?
Dr. Hirt graduated from Harvard Medical School in 1993.
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What drugs does Dr. Michael Hirt prescribe most?
In 2024 Medicare Part D data, Dr. Hirt's most prescribed drugs by claims were Rosuvastatin Calcium, Levothyroxine Sodium and Metformin HCl ER.
Has Dr. Michael Hirt received payments from drug or device companies?
CMS Open Payments shows $197 in general payments to Dr. Hirt from 6 companies from 2016 to 2023. The largest total came from Romark Laboratories, LC.
How long has Dr. Michael Hirt been practicing?
Dr. Hirt graduated from medical school in 1993, 33 years ago.
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