Dr. Frederick Joseph Kretzschmar, MD
- Medicare services, 2024
- 3,932
- Medicare patients, 2024
- 1,141
- MIPS score, 2024
- 82
- Hospital affiliations
- 4
- Medical group
- 1
- Practice address
- 250 Bon Air Road, Greenbrae, CA 94904
- Practice phone
- Call (415) 925-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kretzschmar'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. Frederick Joseph Kretzschmar is a pathologist in Greenbrae, California
Dr. Kretzschmar practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.
Dr. Kretzschmar's NPI, 1245348861, was assigned on August 25, 2006. Dr. Kretzschmar graduated from Vanderbilt University School Of Medicine in 1981. Dr. Kretzschmar holds California license G49874.
- NPI
- 1245348861NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294828521
- NPI enumeration date
- August 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 925-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Frederick Joseph Kretzschmar practices at MarinHealth Medical Center in Greenbrae, California
Dr. Kretzschmar's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.
- MarinHealth Medical Center250 Bon Air Road, Greenbrae, CA 94904 · Marin CountyPhone(415) 925-7900
Source: Dmand AI Affiliation Data
Dr. Frederick Joseph Kretzschmar is affiliated with 4 sites of care and 1 medical group
Dr. Kretzschmar's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dr. Kretzschmar is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is Marin Medical Laboratories. Dmand AI also links Dr. Kretzschmar to 2 more hospitals, 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. Frederick Joseph Kretzschmar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kretzschmar practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MarinHealth Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Frederick Joseph Kretzschmar is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Kretzschmar's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Kretzschmar is board certified in nuclear medicine by the American Board of Nuclear Medicine. Dr. Kretzschmar is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Kretzschmar
Counts of pathologists 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. Frederick Joseph Kretzschmar billed Medicare for 3,932 services in 2024
CMS data shows 3,932 Medicare services from Dr. Kretzschmar across 17 procedure codes in 2024, for 1,141 Medicare patients. Medicare paid $135,491 for them.
Dr. Kretzschmar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,7532024: 3,8633%
- Other services
- 2023: 612024: 6913%
Where Dr. Kretzschmar's Medicare services took place, 2024
- In an office76519%
- In a facility3,16781%
Dr. Kretzschmar compared with the California median for pathologists, 2024
- Dr. Kretzschmar
- California median
- Medicare services
- 3,932vs 1,1533.4 times
- Medicare patients
- 1,141vs 4472.6 times
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Kretzschmar'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. Frederick Joseph Kretzschmar treated 1,141 Medicare patients in 2024, average age 75
CMS counts 1,141 Medicare patients who saw Dr. Kretzschmar in 2024. The largest group is 65 to 74, with 525 patients. 75% of them have high cholesterol, and 59% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kretzschmar's median patient age at 57, with 65% women.
Dr. Kretzschmar's Medicare patients by age, 2024
Dr. Kretzschmar's Medicare patients by sex, 2024
- Women64757%
- Men49443%
Chronic conditions among Dr. Kretzschmar's Medicare patients, 2024
- High cholesterol75%
- High blood pressure59%
- Arthritis45%
- Cancer31%
- Anxiety23%
- Ischemic heart disease23%
- Osteoporosis22%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kretzschmar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women65%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Frederick Joseph Kretzschmar scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Kretzschmar for performance year 2024, reported as part of a group. Dr. Kretzschmar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Kretzschmar's MIPS scores, performance year 2024
- 82of 100Final score
- 59.7of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Frederick Joseph Kretzschmar graduated from Vanderbilt University School Of Medicine
Dr. Kretzschmar graduated from Vanderbilt University School Of Medicine in 1981.
- Medical school
- Board certified in nuclear medicine
- Board certified in anatomic pathology & clinical pathology
Source: Dmand AI Professional Profile Data
Dr. Frederick Joseph Kretzschmar accepts plans from 12 insurance carriers
Dr. Kretzschmar is in network with 12 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +4 more carriersWith a free account
Plan types Dr. Kretzschmar accepts, by number of carriers
- PPO7
- HMO6
- EPO3
- Medicare2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Frederick Joseph Kretzschmar'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Frederick Joseph Kretzschmar
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. Frederick Joseph Kretzschmar's NPI number?
Dr. Frederick Joseph Kretzschmar's NPI number is 1245348861. It was assigned on August 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Frederick Joseph Kretzschmar?
Dr. Frederick Joseph Kretzschmar is a pathologist in Greenbrae, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Frederick Joseph Kretzschmar practice?
Dr. Kretzschmar practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Kretzschmar's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dmand AI also links Dr. Kretzschmar to 2 hospitals.
What is Dr. Frederick Joseph Kretzschmar's office phone number?
The practice phone on file for Dr. Kretzschmar is (415) 925-7900.
What is Dr. Frederick Joseph Kretzschmar's medical license number?
Dr. Kretzschmar holds California license G49874.
Which hospitals is Dr. Frederick Joseph Kretzschmar affiliated with?
Dr. Kretzschmar practices at MarinHealth Medical Center in Greenbrae, California. Dr. Kretzschmar is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. Dmand AI links Dr. Kretzschmar to 2 more hospitals.
What medical group is Dr. Frederick Joseph Kretzschmar part of?
Dr. Kretzschmar is linked to Marin Medical Laboratories.
Does Dr. Frederick Joseph Kretzschmar accept Medicare?
Yes. CMS data shows Dr. Kretzschmar billed Medicare for 3,932 services in 2024, and Dr. Kretzschmar accepts Medicare assignment.
What is Dr. Frederick Joseph Kretzschmar's MIPS score?
Dr. Kretzschmar's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Frederick Joseph Kretzschmar see?
CMS counts 1,141 Medicare patients who saw Dr. Kretzschmar in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
Is Dr. Frederick Joseph Kretzschmar board certified?
Yes. Dr. Kretzschmar is board certified in nuclear medicine by the American Board of Nuclear Medicine.
What services does Dr. Frederick Joseph Kretzschmar bill to Medicare?
In 2024, Dr. Kretzschmar's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. Frederick Joseph Kretzschmar go to medical school?
Dr. Kretzschmar graduated from Vanderbilt University School Of Medicine in 1981.
How long has Dr. Frederick Joseph Kretzschmar been practicing?
Dr. Kretzschmar graduated from medical school in 1981, 45 years ago.
What insurance does Dr. Frederick Joseph Kretzschmar accept?
Dr. Kretzschmar is in network with 12 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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