Dr. Amy C. Dennis, MD

  • Oakland, CA
  • Emergency medicine physician
NPI1366632416PAC ID0446435408
Medicare services, 2024
28
Medicare patients, 2024
42
Part D claims, 2024
185
Hospital affiliations
1
Medical group
1
Practice address
380 West MacArthur Boulevard, Oakland, CA 94609
Practice phone
Call (510) 251-0121
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Addiction Medicine & Recovery Services at Oakland Medical Center

Outpatient Addiction Treatment · Oakland, California

See all 3 affiliations

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Dr. Amy C. Dennis is an emergency medicine physician in Oakland, California

Dr. Dennis practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.

Dr. Dennis' NPI, 1366632416, was assigned on July 25, 2007. Dr. Dennis graduated from University Of Michigan Medical School in 2006. Dr. Dennis' California license number on file is A 111627.

NPI and contact details
Medicare PAC ID
0446435408
NPI enumeration date
July 25, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 251-0121
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Amy C. Dennis practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California

Dr. Dennis' primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center, at 380 West MacArthur Boulevard, Oakland, CA 94609. The practice phone is (510) 251-0121.

  • Addiction Medicine & Recovery Services at Oakland Medical Center
    380 West MacArthur Boulevard, Oakland, CA 94609Phone(510) 251-0121

Source: Dmand AI Affiliation Data

Dr. Amy C. Dennis is affiliated with 2 sites of care and 1 medical group

Dr. Dennis' primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California. Dr. Dennis is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc.

Addiction Medicine & Recovery Services at Oakland Medical CenterOutpatient Addiction Treatment · Oakland, CaliforniaPrimary
Oakland Medical CenterAcute care hospital, Oakland, CAThe Permanente Medical Group, Inc.Primary care group, Pleasanton, CAParent health systemName with a free account
See all 3 affiliations for Dr. Dennis

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Amy C. Dennis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennis practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Addiction Medicine & Recovery Services at Oakland Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Amy C. Dennis is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Dennis' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Dennis is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Dennis' licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A 111627 · 2010 to 2025 · taxonomy 207P00000X
  • New York license2007 to 2010

Emergency medicine physicians near Dr. Dennis

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. Amy C. Dennis billed Medicare for 28 services in 2024

CMS data shows 28 Medicare services from Dr. Dennis across 2 procedure codes in 2024, for 42 Medicare patients. Medicare paid $3,489 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202428
Medicare patients42
Paid by Medicare$3,489
Procedure codes2

Dr. Dennis' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 292024: 283%

Dr. Dennis compared with the California median for emergency medicine physicians, 2024

  • Dr. Dennis
  • California median
Medicare services
28vs 26589% below
Medicare patients
42vs 24383% below
Part D claims
25vs 6260% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Dennis' 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. Amy C. Dennis treated 42 Medicare patients in 2024, average age 69

CMS counts 42 Medicare patients who saw Dr. Dennis in 2024. The largest group is 65 to 74, with 22 patients. 71% of them have high blood pressure, and 52% have diabetes. Their average risk score is 2.36, 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. Dennis' median patient age at 46, with 56% women.

Medicare patients, 202442
Average age69
Average risk score2.36

Dr. Dennis' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Dennis' Medicare patients by sex, 2024

  • Women2457%
  • Men1843%

Chronic conditions among Dr. Dennis' Medicare patients, 2024

  1. High blood pressure71%
  2. Diabetes52%
  3. Arthritis48%
  4. High cholesterol48%
  5. Mood disorders45%
  6. Alcohol and drug use disorders36%
  7. Chronic kidney disease36%
  8. Anxiety33%

Share of Medicare patients with each condition. A patient can have several.

Dr. Dennis' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 46

Patient panel by sex, all payers

  • Women56%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Amy C. Dennis wrote 185 Medicare Part D claims in 2024

In 2024, Dr. Dennis wrote 185 Medicare Part D claims for 118 patients. 89% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $183 in total drug cost. In 2023, CMS named 15 claims across 1 drug.

Part D claims, 2024185
Drugs named by CMS2
Total drug cost$183
Part D patients118

Dr. Dennis' Part D claims by kind of drug, 2024

  • Generic165 claims89%
  • Brand-name and other20 claims11%

Dr. Dennis' 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. Dennis' Part D claims, 2024

  • Opioids15%27 of 185 claims
  • Antibiotics19%36 of 185 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: 152024: 2567%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Dennis

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. Amy C. Dennis takes part in Medicare

Dr. Dennis 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. Amy C. Dennis graduated from University Of Michigan Medical School

Dr. Dennis graduated from University Of Michigan Medical School in 2006.

  1. Medical schoolUniversity Of Michigan Medical School
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Amy C. Dennis accepts plans from 2 insurance carriers

Dr. Dennis is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Dennis accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Amy C. Dennis's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Amy C. Dennis

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. Amy C. Dennis' NPI number?

Dr. Amy C. Dennis' NPI number is 1366632416. It was assigned on July 25, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Amy C. Dennis?

Dr. Amy C. Dennis is an emergency medicine physician in Oakland, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Amy C. Dennis practice?

Dr. Dennis practices at 380 West MacArthur Boulevard, Oakland, CA 94609. Dr. Dennis' primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.

What is Dr. Amy C. Dennis' office phone number?

The practice phone on file for Dr. Dennis is (510) 251-0121.

What is Dr. Amy C. Dennis' medical license number?

Dr. Dennis' California license number on file is A 111627, one of the licenses on file in 2 states.

Which states has Dr. Amy C. Dennis been licensed in?

Dmand AI has state licenses on file for Dr. Dennis in California (2010 to 2025) and New York (2007 to 2010).

Which hospitals is Dr. Amy C. Dennis affiliated with?

Dr. Dennis is affiliated with Oakland Medical Center.

What medical group is Dr. Amy C. Dennis part of?

Dr. Dennis is linked to The Permanente Medical Group, Inc.

Does Dr. Amy C. Dennis accept Medicare?

Yes. CMS data shows Dr. Dennis billed Medicare for 28 services in 2024, and Dr. Dennis accepts Medicare assignment.

How many Medicare patients does Dr. Amy C. Dennis see?

CMS counts 42 Medicare patients who saw Dr. Dennis in 2024, with an average age of 69.

Show 6 more questionsShow fewer questions

Is Dr. Amy C. Dennis board certified?

Yes. Dr. Dennis is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. Amy C. Dennis bill to Medicare?

In 2024, Dr. Dennis' most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).

Where did Dr. Amy C. Dennis go to medical school?

Dr. Dennis graduated from University Of Michigan Medical School in 2006.

What drugs does Dr. Amy C. Dennis prescribe most?

In 2024 Medicare Part D data, Dr. Dennis' most prescribed drugs by claims were Oxycodone HCl and Cefadroxil.

How long has Dr. Amy C. Dennis been practicing?

Dr. Dennis graduated from medical school in 2006, 20 years ago.

What insurance does Dr. Amy C. Dennis accept?

Dr. Dennis is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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