Dr. Ronald D. Hertz, DO
- Medicare services, 2024
- 185
- Medicare patients, 2024
- 84
- Part D claims, 2024
- 931
- Hospital affiliations
- 2
- Industry payments
- $71
- Practice address
- 22101 Moross Rd, Detroit, MI 48236
- Practice phone
- Call (313) 343-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hertz'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. Ronald D. Hertz is an internist in Detroit, Michigan
Dr. Hertz practices at Henry Ford St. John Hospital in Detroit, Michigan, part of Henry Ford Health.
Dr. Hertz's NPI, 1053304816, was assigned on August 26, 2005. Dr. Hertz graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1989. Dr. Hertz holds Michigan license 5101010791.
- NPI
- 1053304816NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638239288
- NPI enumeration date
- August 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (313) 343-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ronald D. Hertz practices at Henry Ford St. John Hospital in Detroit, Michigan
Dr. Hertz's primary practice is Henry Ford St. John Hospital, at 22101 Moross Rd, Detroit, MI 48236 in Wayne County. The practice phone is (313) 343-4000.
- Henry Ford St. John Hospital22101 Moross Rd, Detroit, MI 48236 · Wayne CountyPhone(313) 343-4000
Source: Dmand AI Affiliation Data
Dr. Ronald D. Hertz is affiliated with 3 sites of care and 2 medical groups
Dr. Hertz's primary practice is Henry Ford St. John Hospital in Detroit, Michigan, part of Henry Ford Health. Dr. Hertz is also affiliated with Henry Ford Hospital. The medical group on file is Henry Ford St. John Hospital. Dmand AI also links Dr. Hertz to 1 more group practice or clinic and 1 medical group, 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. Ronald D. Hertz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hertz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Henry Ford St. John Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Henry Ford Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ronald D. Hertz is one of 4,804 internists in Michigan
Internal medicine is Dr. Hertz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hertz is board certified in internal medicine by the American Board of Internal Medicine. Dr. Hertz is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Clinical focus
Dmand AI lists acute respiratory failure, acute sinusitis, acute skin infection, alzheimer's disease, asthma, cerebrovascular disease, chronic diabetes and chronic hypertension among the conditions Dr. Hertz treats.
Internists near Dr. Hertz
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. Ronald D. Hertz billed Medicare for 185 services in 2024
CMS data shows 185 Medicare services from Dr. Hertz across 4 procedure codes in 2024, for 84 Medicare patients. Medicare paid $12,935 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hertz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2372024: 18522%
- Other services
- 2023: 142024: 0100%
Dr. Hertz compared with the Michigan median for internists, 2024
- Dr. Hertz
- Michigan median
- Medicare services
- 185vs 42356% below
- Medicare patients
- 84vs 15947% below
- Part D claims
- 539vs 31472% above
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Hertz'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. Hertz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hertz and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald D. Hertz treated 84 Medicare patients in 2024, average age 69
CMS counts 84 Medicare patients who saw Dr. Hertz in 2024. The largest group is under 65, with 28 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 49% are also on Medicaid. Their average risk score is 1.69, 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. Hertz's median patient age at 58, with 49% women.
Dr. Hertz's Medicare patients by age, 2024
Dr. Hertz's Medicare patients by sex, 2024
- Women4351%
- Men4149%
Chronic conditions among Dr. Hertz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis52%
- Diabetes49%
- Ischemic heart disease48%
- Heart failure42%
- Anxiety37%
- COPD37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hertz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald D. Hertz wrote 931 Medicare Part D claims in 2024
In 2024, Dr. Hertz wrote 931 Medicare Part D claims for 62 patients. 85% of them were for generic drugs. CMS names the drug for 539 of them, across 22 drugs with 11 or more claims each, at $30,320 in total drug cost. In 2023, CMS named 592 claims across 26 drugs.
Dr. Hertz's Part D claims by kind of drug, 2024
- Generic791 claims85%
- Brand-name119 claims13%
- Other21 claims2%
Dr. Hertz'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. Hertz's Part D claims, 2024
- Opioids6%57 of 931 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: 5922024: 5399%
Drugs named by CMS: 22 in 2024, 26 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. Ronald D. Hertz takes part in Medicare
Dr. Hertz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ronald D. Hertz received $71 in industry payments from 2017 to 2019
CMS Open Payments shows 4 general payments to Dr. Hertz from 4 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Eisai Inc. paid the most, $23.
General payments to Dr. Hertz by program year, 2017 to 2019
Companies that paid Dr. Hertz the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ronald D. Hertz graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury
Dr. Hertz graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1989. Dr. Hertz is a member of ACP and AOA.
- Medical school
- Board certified in internal medicine
- Board certified in pediatrics
- Board certified in pediatrics
- Board certified in 1989 - 2027
Source: Dmand AI Professional Profile Data
Dr. Ronald D. Hertz accepts plans from 12 insurance carriers
Dr. Hertz is in network with 12 carriers, including Aetna, Health Alliance Plan and Priority Health. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Health Alliance Plan
- Priority Health
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Aspirus Health Plan
- CMS Medicare
- +4 more carriersWith a free account
Plan types Dr. Hertz accepts, by number of carriers
- HMO9
- Medicare7
- PPO6
- POS5
- Medicaid3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Ronald D. Hertz'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)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. Ronald D. Hertz
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. Ronald D. Hertz's NPI number?
Dr. Ronald D. Hertz's NPI number is 1053304816. It was assigned on August 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald D. Hertz?
Dr. Ronald D. Hertz is an internist in Detroit, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ronald D. Hertz practice?
Dr. Hertz practices at 22101 Moross Rd, Detroit, MI 48236. Dr. Hertz's primary practice is Henry Ford St. John Hospital in Detroit, Michigan, part of Henry Ford Health. Dmand AI also links Dr. Hertz to 1 group practice or clinic and 1 medical group.
What is Dr. Ronald D. Hertz's office phone number?
The practice phone on file for Dr. Hertz is (313) 343-4000.
What is Dr. Ronald D. Hertz's medical license number?
Dr. Hertz holds Michigan license 5101010791.
Which hospitals is Dr. Ronald D. Hertz affiliated with?
Dr. Hertz practices at Henry Ford St. John Hospital in Detroit, Michigan. Dr. Hertz is also affiliated with Henry Ford Hospital.
What medical group is Dr. Ronald D. Hertz part of?
Dr. Hertz is linked to Henry Ford St. John Hospital. Dmand AI links Dr. Hertz to 1 more medical group.
Does Dr. Ronald D. Hertz accept Medicare?
Yes. CMS data shows Dr. Hertz billed Medicare for 185 services in 2024, and Dr. Hertz accepts Medicare assignment.
How many Medicare patients does Dr. Ronald D. Hertz see?
CMS counts 84 Medicare patients who saw Dr. Hertz in 2024, with an average age of 69.
Is Dr. Ronald D. Hertz board certified?
Yes. Dr. Hertz is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Ronald D. Hertz bill to Medicare?
In 2024, Dr. Hertz's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99223).
Where did Dr. Ronald D. Hertz go to medical school?
Dr. Hertz graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1989.
What drugs does Dr. Ronald D. Hertz prescribe most?
In 2024 Medicare Part D data, Dr. Hertz's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Metformin HCl.
Has Dr. Ronald D. Hertz received payments from drug or device companies?
CMS Open Payments shows $71 in general payments to Dr. Hertz from 4 companies from 2017 to 2019. The largest total came from Eisai Inc.
How long has Dr. Ronald D. Hertz been practicing?
Dr. Hertz graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Ronald D. Hertz accept?
Dr. Hertz is in network with 12 carriers, including Aetna, Health Alliance Plan and Priority Health. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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