Dr. Michael Jeremy Gerstein, MD
- Medicare services, 2024
- 21
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 284
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 401 Bicentennial Way, Santa Rosa, CA 95403
- Practice phone
- Call (707) 571-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gerstein'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. Michael Jeremy Gerstein is an emergency medicine physician in Santa Rosa, California
Dr. Gerstein practices at Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente.
Dr. Gerstein's NPI, 1417186107, was assigned on July 2, 2009. Dr. Gerstein graduated from St. George's University School of Medicine in 2009. Dr. Gerstein's California license number on file is A120837.
- NPI
- 1417186107NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042469074
- NPI enumeration date
- July 2, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 571-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Jeremy Gerstein practices at Santa Rosa Medical Center in Santa Rosa, California
Dr. Gerstein's primary practice is Santa Rosa Medical Center, at 401 Bicentennial Way, Santa Rosa, CA 95403 in Sonoma County. The practice phone is (707) 571-4000.
- Santa Rosa Medical Center401 Bicentennial Way, Santa Rosa, CA 95403 · Sonoma CountyPhone(707) 571-4000
Source: Dmand AI Affiliation Data
Dr. Michael Jeremy Gerstein is affiliated with 1 site of care and 1 medical group
Dr. Gerstein's primary practice is Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Jeremy Gerstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerstein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Rosa Medical Center | 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 Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Jeremy Gerstein is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Gerstein's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Gerstein is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Gerstein's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Michigan license
Emergency medicine physicians near Dr. Gerstein
Counts of emergency medicine physicians 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 Jeremy Gerstein billed Medicare for 21 services in 2024
CMS data shows 21 Medicare services from Dr. Gerstein across 1 procedure code in 2024, for 26 Medicare patients. Medicare paid $2,345 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gerstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 162024: 2131%
Dr. Gerstein compared with the California median for emergency medicine physicians, 2024
- Dr. Gerstein
- California median
- Medicare services
- 21vs 26592% below
- Medicare patients
- 26vs 24389% below
- Part D claims
- 127vs 622.0 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Gerstein'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. Gerstein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gerstein and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Jeremy Gerstein treated 26 Medicare patients in 2024, average age 63
CMS counts 26 Medicare patients who saw Dr. Gerstein in 2024. The largest group is 65 to 74, with 12 patients. 58% of them have high blood pressure, and 50% have high cholesterol. Their average risk score is 1.88, 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. Gerstein's median patient age at 36, with 54% women.
Dr. Gerstein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gerstein's Medicare patients by sex, 2024
- Women1350%
- Men1350%
Chronic conditions among Dr. Gerstein's Medicare patients, 2024
- High blood pressure58%
- High cholesterol50%
- Arthritis46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gerstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Jeremy Gerstein wrote 284 Medicare Part D claims in 2024
In 2024, Dr. Gerstein wrote 284 Medicare Part D claims for 182 patients. 94% of them were for generic drugs. CMS names the drug for 127 of them, across 6 drugs with 11 or more claims each, at $1,437 in total drug cost. In 2023, CMS named 126 claims across 7 drugs.
Dr. Gerstein's Part D claims by kind of drug, 2024
- Generic267 claims94%
- Brand-name and other17 claims6%
Dr. Gerstein'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. Gerstein's Part D claims, 2024
- Opioids14%40 of 284 claims
- Antibiotics31%89 of 284 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: 1262024: 1271%
Drugs named by CMS: 6 in 2024, 7 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. Michael Jeremy Gerstein takes part in Medicare
Dr. Gerstein 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Michael Jeremy Gerstein graduated from St. George's University School of Medicine
Dr. Gerstein graduated from St. George's University School of Medicine in 2009.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Michael Jeremy Gerstein accepts plans from 1 insurance carrier
Dr. Gerstein is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Gerstein accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael Jeremy Gerstein'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) |
| 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. Michael Jeremy Gerstein
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 Jeremy Gerstein's NPI number?
Dr. Michael Jeremy Gerstein's NPI number is 1417186107. It was assigned on July 2, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Jeremy Gerstein?
Dr. Michael Jeremy Gerstein is an emergency medicine physician in Santa Rosa, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael Jeremy Gerstein practice?
Dr. Gerstein practices at 401 Bicentennial Way, Santa Rosa, CA 95403. Dr. Gerstein's primary practice is Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente.
What is Dr. Michael Jeremy Gerstein's office phone number?
The practice phone on file for Dr. Gerstein is (707) 571-4000.
What is Dr. Michael Jeremy Gerstein's medical license number?
Dr. Gerstein's California license number on file is A120837, one of the licenses on file in 2 states.
Which states has Dr. Michael Jeremy Gerstein been licensed in?
Dmand AI has state licenses on file for Dr. Gerstein in California (2012 to 2025) and Michigan (2009 to 2012).
Which hospitals is Dr. Michael Jeremy Gerstein affiliated with?
Dr. Gerstein practices at Santa Rosa Medical Center in Santa Rosa, California.
What medical group is Dr. Michael Jeremy Gerstein part of?
Dr. Gerstein is linked to The Permanente Medical Group, Inc.
Does Dr. Michael Jeremy Gerstein accept Medicare?
Yes. CMS data shows Dr. Gerstein billed Medicare for 21 services in 2024, and Dr. Gerstein accepts Medicare assignment.
How many Medicare patients does Dr. Michael Jeremy Gerstein see?
CMS counts 26 Medicare patients who saw Dr. Gerstein in 2024, with an average age of 63.
Show 6 more questionsShow fewer questions
Is Dr. Michael Jeremy Gerstein board certified?
Yes. Dr. Gerstein is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Michael Jeremy Gerstein bill to Medicare?
In 2024, Dr. Gerstein's most billed Medicare services were emergency department visit (99285).
Where did Dr. Michael Jeremy Gerstein go to medical school?
Dr. Gerstein graduated from St. George's University School of Medicine in 2009.
What drugs does Dr. Michael Jeremy Gerstein prescribe most?
In 2024 Medicare Part D data, Dr. Gerstein's most prescribed drugs by claims were Ondansetron ODT, Oxycodone HCl and Cefpodoxime Proxetil.
How long has Dr. Michael Jeremy Gerstein been practicing?
Dr. Gerstein graduated from medical school in 2009, 17 years ago.
What insurance does Dr. Michael Jeremy Gerstein accept?
Dr. Gerstein is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to emergency medicine practices?
See emergency medicine physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card