Dr. Ann L. Gerhardt, MD
- Medicare services, 2022
- 48
- Part D claims, 2024
- 239
- Hospital affiliations
- 1
- Industry payments
- $432
- Insurance carriers
- 3
- Practice address
- 2825 Capitol Avenue, Sacramento, CA 95816
- Practice phone
- Call (916) 454-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gerhardt'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. Ann L. Gerhardt is an internist in Sacramento, California
Dr. Gerhardt practices at Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health.
Dr. Gerhardt's NPI, 1659456887, was assigned on October 26, 2006. Dr. Gerhardt graduated from Cleveland Medical College, Homeopathic in 1979. Dr. Gerhardt's California license number on file is G56285.
- NPI
- 1659456887NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921032814
- NPI enumeration date
- October 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 454-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ann L. Gerhardt practices at Sutter Medical Center, Sacramento in Sacramento, California
Dr. Gerhardt's primary practice is Sutter Medical Center, Sacramento, at 2825 Capitol Avenue, Sacramento, CA 95816 in Sacramento County. The practice phone is (916) 454-2222.
- Sutter Medical Center, Sacramento2825 Capitol Avenue, Sacramento, CA 95816 · Sacramento CountyPhone(916) 454-2222
Source: Dmand AI Affiliation Data
Dr. Ann L. Gerhardt is affiliated with 1 site of care
Dr. Gerhardt's primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health. Dr. Gerhardt's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ann L. Gerhardt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerhardt practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Medical Center, Sacramento | 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 Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ann L. Gerhardt is one of 16,751 internists in California
Internal medicine is Dr. Gerhardt's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gerhardt is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Gerhardt's licenses on file in 3 states: California, Pennsylvania and Illinois.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Pennsylvania license
- Illinois license
Clinical focus
Dmand AI lists chronic diabetes, chronic hypertension, chronic kidney disease, high cholesterol, joint arthropathy and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Gerhardt treats.
Internists near Dr. Gerhardt
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. Ann L. Gerhardt billed Medicare for 48 services in 2022
CMS data shows 48 Medicare services from Dr. Gerhardt across 2 procedure codes in 2022, all of them office visits. Medicare paid $3,429 for them. Every service was in an office.
Dr. Gerhardt's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1592022: 4870%
Dr. Gerhardt compared with the California median for internists, 2022
- Dr. Gerhardt
- California median
- Medicare services
- 48vs 36187% below
- Part D claims
- 52vs 42188% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Gerhardt's most billed Medicare procedure codes, 2022
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. Gerhardt?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gerhardt and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ann L. Gerhardt's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Gerhardt's median patient age at 71, with 35% women.
Dr. Gerhardt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women35%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Ann L. Gerhardt wrote 239 Medicare Part D claims in 2024
In 2024, Dr. Gerhardt wrote 239 Medicare Part D claims for 14 patients. 86% of them were for generic drugs. CMS names the drug for 52 of them, across 3 drugs with 11 or more claims each, at $590 in total drug cost. In 2023, CMS named 43 claims across 3 drugs.
Dr. Gerhardt's Part D claims by kind of drug, 2024
- Generic205 claims86%
- Brand-name and other34 claims14%
Dr. Gerhardt'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 432024: 5221%
Drugs named by CMS: 3 in 2024, 3 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. Ann L. Gerhardt takes part in Medicare
Dr. Gerhardt 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. Ann L. Gerhardt received $432 in industry payments from 2017 to 2022
CMS Open Payments shows 7 general payments to Dr. Gerhardt from 3 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 95% of the total. Abbott Laboratories paid the most, $384.
General payments to Dr. Gerhardt by program year, 2017 to 2022
General payments to Dr. Gerhardt by kind, 2017 to 2022
- Food and beverage$41195%
- Travel and lodging$215%
Companies that paid Dr. Gerhardt the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ann L. Gerhardt has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Gerhardt, most recently Medical Honor Award in 2009.
Awards and honors for Dr. Gerhardt
- 2009
- Medical Honor Award
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Ann L. Gerhardt graduated from Cleveland Medical College, Homeopathic
Dr. Gerhardt graduated from Cleveland Medical College, Homeopathic in 1979.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Ann L. Gerhardt accepts plans from 3 insurance carriers
Dr. Gerhardt is in network with 3 carriers, including Aetna, CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Aetna
- CMS Medicare
- Molina
Plan types Dr. Gerhardt accepts, by number of carriers
- Medicare2
- EPO1
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ann L. Gerhardt'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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Ann L. Gerhardt
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. Ann L. Gerhardt's NPI number?
Dr. Ann L. Gerhardt's NPI number is 1659456887. It was assigned on October 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ann L. Gerhardt?
Dr. Ann L. Gerhardt is an internist in Sacramento, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ann L. Gerhardt practice?
Dr. Gerhardt practices at 2825 Capitol Avenue, Sacramento, CA 95816. Dr. Gerhardt's primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health.
What is Dr. Ann L. Gerhardt's office phone number?
The practice phone on file for Dr. Gerhardt is (916) 454-2222.
What is Dr. Ann L. Gerhardt's medical license number?
Dr. Gerhardt's California license number on file is G56285, one of the licenses on file in 3 states.
Which states has Dr. Ann L. Gerhardt been licensed in?
Dmand AI has state licenses on file for Dr. Gerhardt in California (1985 to 2025), Pennsylvania (1981 to 1996) and Illinois (1983 to 1987).
Which hospitals is Dr. Ann L. Gerhardt affiliated with?
Dr. Gerhardt practices at Sutter Medical Center, Sacramento in Sacramento, California.
Does Dr. Ann L. Gerhardt accept Medicare?
Yes. CMS data shows Dr. Gerhardt billed Medicare for 48 services in 2022, and Dr. Gerhardt accepts Medicare assignment.
Is Dr. Ann L. Gerhardt board certified?
Yes. Dr. Gerhardt is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Ann L. Gerhardt bill to Medicare?
In 2022, Dr. Gerhardt's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Show 5 more questionsShow fewer questions
Where did Dr. Ann L. Gerhardt go to medical school?
Dr. Gerhardt graduated from Cleveland Medical College, Homeopathic in 1979.
What drugs does Dr. Ann L. Gerhardt prescribe most?
In 2024 Medicare Part D data, Dr. Gerhardt's most prescribed drugs by claims were Alprazolam, Lisinopril and Mirtazapine.
Has Dr. Ann L. Gerhardt received payments from drug or device companies?
CMS Open Payments shows $432 in general payments to Dr. Gerhardt from 3 companies from 2017 to 2022. The largest total came from Abbott Laboratories.
How long has Dr. Ann L. Gerhardt been practicing?
Dr. Gerhardt graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Ann L. Gerhardt accept?
Dr. Gerhardt is in network with 3 carriers, including Aetna, CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists 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