Dr. Denise Louise Ammon, MD
- Medicare services, 2024
- 739
- Medicare patients, 2024
- 562
- Part D claims, 2024
- 124
- MIPS score, 2024
- 74
- Hospital affiliations
- 2
- Practice address
- 1800 N California St, Stockton, CA 95204
- Practice phone
- Call (209) 943-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ammon's professional email, personal email and mobile number
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Dr. Denise Louise Ammon is an emergency medicine physician in Stockton, California
Dr. Ammon practices at Dignity Health - St. Joseph's Medical Center in Stockton, California, part of CommonSpirit Health.
Dr. Ammon's NPI, 1518222876, was assigned on July 11, 2012. Dr. Ammon graduated from Tulane School of Medicine in 2012. Dr. Ammon holds California license 140686.
- NPI
- 1518222876NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971899238
- NPI enumeration date
- July 11, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 943-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Denise Louise Ammon practices at Dignity Health - St. Joseph's Medical Center in Stockton, California
Dr. Ammon's primary practice is Dignity Health - St. Joseph's Medical Center, at 1800 N California St, Stockton, CA 95204 in San Joaquin County. The practice phone is (209) 943-2000.
- Dignity Health - St. Joseph's Medical Center1800 N California St, Stockton, CA 95204 · San Joaquin CountyPhone(209) 943-2000
Source: Dmand AI Affiliation Data
Dr. Denise Louise Ammon is affiliated with 2 sites of care and 3 medical groups
Dr. Ammon's primary practice is Dignity Health - St. Joseph's Medical Center in Stockton, California, part of CommonSpirit Health. Dr. Ammon is also affiliated with Concord Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Ammon to 2 more medical groups, 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. Denise Louise Ammon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ammon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. Joseph's Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Denise Louise Ammon is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Ammon's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ammon is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Ammon is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Ammon
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. Denise Louise Ammon billed Medicare for 739 services in 2024
CMS data shows 739 Medicare services from Dr. Ammon across 6 procedure codes in 2024, for 562 Medicare patients. Medicare paid $81,139 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ammon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6202024: 6151%
- Tests and treatments
- 2023: 632024: 11278%
- Surgery
- 2023: 02024: 12
Dr. Ammon compared with the California median for emergency medicine physicians, 2024
- Dr. Ammon
- California median
- Medicare services
- 739vs 2652.8 times
- Medicare patients
- 562vs 2432.3 times
- Part D claims
- 53vs 6215% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Ammon'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ammon 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. Denise Louise Ammon treated 562 Medicare patients in 2024, average age 71
CMS counts 562 Medicare patients who saw Dr. Ammon in 2024. The largest group is 65 to 74, with 209 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 67% are also on Medicaid. Their average risk score is 2.61, 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. Ammon's median patient age at 39, with 55% women.
Dr. Ammon's Medicare patients by age, 2024
Dr. Ammon's Medicare patients by sex, 2024
- Women29152%
- Men27148%
Chronic conditions among Dr. Ammon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes53%
- Chronic kidney disease46%
- Ischemic heart disease43%
- Arthritis42%
- Heart failure40%
- Anxiety36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ammon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Denise Louise Ammon wrote 124 Medicare Part D claims in 2024
In 2024, Dr. Ammon wrote 124 Medicare Part D claims for 90 patients. 98% of them were for generic drugs. CMS names the drug for 53 of them, across 4 drugs with 11 or more claims each, at $242 in total drug cost. In 2023, CMS named 65 claims across 5 drugs.
Dr. Ammon's Part D claims by kind of drug, 2024
- Generic121 claims98%
- Brand-name and other3 claims2%
Dr. Ammon'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. Ammon's Part D claims, 2024
- Opioids14%17 of 124 claims
- Antibiotics33%41 of 124 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: 652024: 5318%
Drugs named by CMS: 4 in 2024, 5 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
Dr. Denise Louise Ammon scored 74 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 74 out of 100 for Dr. Ammon for performance year 2024, reported individually. Dr. Ammon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ammon's MIPS scores, performance year 2024
- 74of 100Final score
- 52.1of 100Quality
- 40of 100Improvement Activities
- 66of 100Cost
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. Denise Louise Ammon received $125 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Ammon from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $125.
Companies that paid Dr. Ammon the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Denise Louise Ammon graduated from Tulane School of Medicine
Dr. Ammon graduated from Tulane School of Medicine in 2012.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Denise Louise Ammon accepts plans from 2 insurance carriers
Dr. Ammon is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
- NV State Medicaid
Plan types Dr. Ammon accepts, by number of carriers
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Denise Louise Ammon'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)Clinician Public Reporting: Overall MIPS Performance (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. Denise Louise Ammon
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. Denise Louise Ammon's NPI number?
Dr. Denise Louise Ammon's NPI number is 1518222876. It was assigned on July 11, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Denise Louise Ammon?
Dr. Denise Louise Ammon is an emergency medicine physician in Stockton, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Denise Louise Ammon practice?
Dr. Ammon practices at 1800 N California St, Stockton, CA 95204. Dr. Ammon's primary practice is Dignity Health - St. Joseph's Medical Center in Stockton, California, part of CommonSpirit Health. Dmand AI also links Dr. Ammon to 2 medical groups.
What is Dr. Denise Louise Ammon's office phone number?
The practice phone on file for Dr. Ammon is (209) 943-2000.
What is Dr. Denise Louise Ammon's medical license number?
Dr. Ammon holds California license 140686.
Which hospitals is Dr. Denise Louise Ammon affiliated with?
Dr. Ammon practices at Dignity Health - St. Joseph's Medical Center in Stockton, California. Dr. Ammon is also affiliated with Concord Medical Center.
What medical group is Dr. Denise Louise Ammon part of?
Dr. Ammon is linked to Vituity. Dmand AI links Dr. Ammon to 2 more medical groups.
Does Dr. Denise Louise Ammon accept Medicare?
Yes. CMS data shows Dr. Ammon billed Medicare for 739 services in 2024, and Dr. Ammon accepts Medicare assignment.
What is Dr. Denise Louise Ammon's MIPS score?
Dr. Ammon's MIPS final score for performance year 2024 is 74 out of 100, reported individually.
How many Medicare patients does Dr. Denise Louise Ammon see?
CMS counts 562 Medicare patients who saw Dr. Ammon in 2024, with an average age of 71.
Show 7 more questionsShow fewer questions
Is Dr. Denise Louise Ammon board certified?
Yes. Dr. Ammon is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Denise Louise Ammon bill to Medicare?
In 2024, Dr. Ammon's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
Where did Dr. Denise Louise Ammon go to medical school?
Dr. Ammon graduated from Tulane School of Medicine in 2012.
What drugs does Dr. Denise Louise Ammon prescribe most?
In 2024 Medicare Part D data, Dr. Ammon's most prescribed drugs by claims were Cephalexin, Ibuprofen and Hydrocodone-Acetaminophen.
Has Dr. Denise Louise Ammon received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Ammon from 1 company from 2016 to 2016. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Denise Louise Ammon been practicing?
Dr. Ammon graduated from medical school in 2012, 14 years ago.
What insurance does Dr. Denise Louise Ammon accept?
Dr. Ammon is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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