Nature
Dr. Rudolf Erich Herzog, MD
- Medicare services, 2024
- 420
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 126
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 4077 5th Ave, San Diego, CA 92103
- Practice phone
- Call (619) 294-8111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Herzog'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. Rudolf Erich Herzog is an internist in San Diego, California
Dr. Herzog practices at Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health.
Dr. Herzog's NPI, 1861599466, was assigned on September 19, 2006. Dr. Herzog graduated from Saint Louis University School Of Medicine in 1991. Dr. Herzog holds California license G77598.
- NPI
- 1861599466NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486686342
- NPI enumeration date
- September 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 294-8111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rudolf Erich Herzog practices at Scripps Mercy Hospital San Diego in San Diego, California
Dr. Herzog's primary practice is Scripps Mercy Hospital San Diego, at 4077 5th Ave, San Diego, CA 92103 in San Diego County. The practice phone is (619) 294-8111.
- Scripps Mercy Hospital San Diego4077 5th Ave, San Diego, CA 92103 · San Diego CountyPhone(619) 294-8111
Source: Dmand AI Affiliation Data
Dr. Rudolf Erich Herzog is affiliated with 1 site of care and 2 medical groups
Dr. Herzog's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Herzog to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rudolf Erich Herzog's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herzog practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Mercy Hospital San Diego | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rudolf Erich Herzog is one of 16,751 internists in California
Internal medicine is Dr. Herzog's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Herzog is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists atrial fibrillation and flutter, bile duct problems, cellulitis, chronic diabetes, congestive heart failure, coronary artery disease, gastrointestinal inflammation and hypertension among the conditions Dr. Herzog treats.
Internists near Dr. Herzog
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. Rudolf Erich Herzog billed Medicare for 420 services in 2024
CMS data shows 420 Medicare services from Dr. Herzog across 5 procedure codes in 2024, for 140 Medicare patients. Medicare paid $26,499 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Herzog's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4442024: 4205%
Dr. Herzog compared with the California median for internists, 2024
- Dr. Herzog
- California median
- Medicare services
- 420vs 36116% above
- Medicare patients
- 140vs 1517% below
- Part D claims
- 98vs 42177% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Herzog'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. Herzog?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Herzog and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rudolf Erich Herzog treated 140 Medicare patients in 2024, average age 74
CMS counts 140 Medicare patients who saw Dr. Herzog in 2024. The largest group is 65 to 74, with 52 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 54% are also on Medicaid. Their average risk score is 2.59, 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. Herzog's median patient age at 70, with 36% women.
Dr. Herzog's Medicare patients by age, 2024
Dr. Herzog's Medicare patients by sex, 2024
- Women5439%
- Men8661%
Chronic conditions among Dr. Herzog's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes47%
- Mood disorders46%
- Ischemic heart disease45%
- Heart failure44%
- Atrial fibrillation41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Herzog's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women36%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rudolf Erich Herzog wrote 126 Medicare Part D claims in 2024
In 2024, Dr. Herzog wrote 126 Medicare Part D claims for 54 patients. 86% of them were for generic drugs. CMS names the drug for 98 of them, across 7 drugs with 11 or more claims each, at $1,431 in total drug cost. In 2018, CMS named 2,409 claims across 72 drugs.
Dr. Herzog's Part D claims by kind of drug, 2024
- Generic108 claims86%
- Brand-name and other18 claims14%
Dr. Herzog's most prescribed drugs by claims, 2019
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. Herzog's Part D claims, 2024
- Opioids17%21 of 126 claims
- Antibiotics18%23 of 126 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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 2,4092019: 9896%
Drugs named by CMS: 7 in 2019, 72 in 2018.
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. Rudolf Erich Herzog takes part in Medicare
Dr. Herzog 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. Rudolf Erich Herzog has 3 publications on record
Dmand AI links 3 papers to Dr. Herzog, published from 2015 to 2018. The most frequent topics are Antibodies, Heart Transplantation and Swine. Dr. Herzog has published most often in Nature.
Topics Dr. Herzog writes about most
- Antibodies
- Heart Transplantation
- Swine
- Transplantation, Heterologous
Recent publications by Dr. Herzog
Xenotransplantation
See who Dr. Herzog researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Herzog works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rudolf Erich Herzog received $116 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Herzog from 2 drug and device companies in 2017. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $92.
Companies that paid Dr. Herzog 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. Rudolf Erich Herzog graduated from Saint Louis University School Of Medicine
Dr. Herzog graduated from Saint Louis University School Of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Rudolf Erich Herzog accepts plans from 3 insurance carriers
Dr. Herzog is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Herzog accepts, by number of carriers
- Medicare3
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Rudolf Erich Herzog'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) |
| 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. Rudolf Erich Herzog
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. Rudolf Erich Herzog's NPI number?
Dr. Rudolf Erich Herzog's NPI number is 1861599466. It was assigned on September 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rudolf Erich Herzog?
Dr. Rudolf Erich Herzog is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rudolf Erich Herzog practice?
Dr. Herzog practices at 4077 5th Ave, San Diego, CA 92103. Dr. Herzog's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. Dmand AI also links Dr. Herzog to 1 medical group.
What is Dr. Rudolf Erich Herzog's office phone number?
The practice phone on file for Dr. Herzog is (619) 294-8111.
What is Dr. Rudolf Erich Herzog's medical license number?
Dr. Herzog holds California license G77598.
Which hospitals is Dr. Rudolf Erich Herzog affiliated with?
Dr. Herzog practices at Scripps Mercy Hospital San Diego in San Diego, California.
What medical group is Dr. Rudolf Erich Herzog part of?
Dr. Herzog is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Herzog to 1 more medical group.
Does Dr. Rudolf Erich Herzog accept Medicare?
Yes. CMS data shows Dr. Herzog billed Medicare for 420 services in 2024, and Dr. Herzog accepts Medicare assignment.
How many Medicare patients does Dr. Rudolf Erich Herzog see?
CMS counts 140 Medicare patients who saw Dr. Herzog in 2024, with an average age of 74.
What services does Dr. Rudolf Erich Herzog bill to Medicare?
In 2024, Dr. Herzog's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99238).
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Where did Dr. Rudolf Erich Herzog go to medical school?
Dr. Herzog graduated from Saint Louis University School Of Medicine in 1991.
What drugs does Dr. Rudolf Erich Herzog prescribe most?
In 2019 Medicare Part D data, Dr. Herzog's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Citalopram HBr.
Has Dr. Rudolf Erich Herzog received payments from drug or device companies?
CMS Open Payments shows $116 in general payments to Dr. Herzog from 2 companies from 2017 to 2017. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Rudolf Erich Herzog been practicing?
Dr. Herzog graduated from medical school in 1991, 35 years ago.
Does Dr. Rudolf Erich Herzog do research?
Dmand AI links 3 publications to Dr. Herzog, published from 2015 to 2018.
What insurance does Dr. Rudolf Erich Herzog accept?
Dr. Herzog is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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