Dr. Erin Denali Hartnett, MD
- Medicare services, 2023
- 12
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 180
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 39400 Paseo Padre Pkwy, Fremont, CA 94538
- Practice phone
- Call (510) 784-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hartnett'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. Erin Denali Hartnett is an emergency medicine physician in Fremont, California
Dr. Hartnett practices at Fremont Medical Center in Fremont, California, part of Kaiser Permanente.
Dr. Hartnett's NPI, 1043890254, was assigned on April 12, 2021. Dr. Hartnett graduated from The University of Arizona College of Medicine, Phoenix in 2021. Dr. Hartnett's Tennessee license number on file is 68076.
- NPI
- 1043890254NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446669881
- NPI enumeration date
- April 12, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 784-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erin Denali Hartnett practices at Fremont Medical Center in Fremont, California
Dr. Hartnett's primary practice is Fremont Medical Center, at 39400 Paseo Padre Pkwy, Fremont, CA 94538 in Alameda County. The practice phone is (510) 784-4000.
- Fremont Medical Center39400 Paseo Padre Pkwy, Fremont, CA 94538 · Alameda CountyPhone(510) 784-4000
Source: Dmand AI Affiliation Data
Dr. Erin Denali Hartnett is affiliated with 3 sites of care and 2 medical groups
Dr. Hartnett's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente. Dr. Hartnett is also affiliated with San Leandro Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Hartnett to 1 more group practice or clinic and 1 medical group, 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. Erin Denali Hartnett's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hartnett practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fremont Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Erin Denali Hartnett is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Hartnett's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Hartnett's licenses on file in 2 states: Tennessee and California.
Specialties and state licenses
- Emergency medicine, TennesseePrimary
- California license
Emergency medicine physicians near Dr. Hartnett
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. Erin Denali Hartnett billed Medicare for 12 services in 2023
CMS data shows 12 Medicare services from Dr. Hartnett across 1 procedure code in 2023, for 17 Medicare patients. Medicare paid $1,570 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hartnett compared with the California median for emergency medicine physicians, 2023
- Dr. Hartnett
- California median
- Medicare services
- 12vs 26595% below
- Medicare patients
- 17vs 24393% below
- Part D claims
- 62vs 62Close to median
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Hartnett's most billed Medicare procedure codes, 2023
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. Hartnett 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. Erin Denali Hartnett treated 17 Medicare patients in 2024, average age 69
CMS counts 17 Medicare patients who saw Dr. Hartnett in 2024. 71% of them have high blood pressure. Their average risk score is 1.74, 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. Hartnett's median patient age at 34, with 59% women.
Chronic conditions among Dr. Hartnett's Medicare patients, 2024
- High blood pressure71%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hartnett's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erin Denali Hartnett wrote 180 Medicare Part D claims in 2024
In 2024, Dr. Hartnett wrote 180 Medicare Part D claims for 135 patients. 97% of them were for generic drugs. CMS names the drug for 62 of them, across 3 drugs with 11 or more claims each, at $398 in total drug cost. In 2023, CMS named 44 claims across 3 drugs.
Dr. Hartnett's Part D claims by kind of drug, 2024
- Generic174 claims97%
- Brand-name and other6 claims3%
Dr. Hartnett'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. Hartnett's Part D claims, 2024
- Opioids18%33 of 180 claims
- Antibiotics34%62 of 180 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: 442024: 6241%
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. Erin Denali Hartnett takes part in Medicare
Dr. Hartnett 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. Erin Denali Hartnett graduated from The University of Arizona College of Medicine, Phoenix
Dr. Hartnett graduated from The University of Arizona College of Medicine, Phoenix in 2021. Dr. Hartnett is a member of AAEM.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Erin Denali Hartnett accepts plans from 3 insurance carriers
Dr. Hartnett is in network with 3 carriers, including United Healthcare, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- United Healthcare
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Hartnett accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- EPO1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Erin Denali Hartnett'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. Erin Denali Hartnett
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. Erin Denali Hartnett's NPI number?
Dr. Erin Denali Hartnett's NPI number is 1043890254. It was assigned on April 12, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Erin Denali Hartnett?
Dr. Erin Denali Hartnett is an emergency medicine physician in Fremont, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Erin Denali Hartnett practice?
Dr. Hartnett practices at 39400 Paseo Padre Pkwy, Fremont, CA 94538. Dr. Hartnett's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente. Dmand AI also links Dr. Hartnett to 1 group practice or clinic and 1 medical group.
What is Dr. Erin Denali Hartnett's office phone number?
The practice phone on file for Dr. Hartnett is (510) 784-4000.
What is Dr. Erin Denali Hartnett's medical license number?
Dr. Hartnett's Tennessee license number on file is 68076, one of the licenses on file in 2 states.
Which states has Dr. Erin Denali Hartnett been licensed in?
Dmand AI has state licenses on file for Dr. Hartnett in Tennessee (2023 to 2024) and California (2024 to 2026).
Which hospitals is Dr. Erin Denali Hartnett affiliated with?
Dr. Hartnett practices at Fremont Medical Center in Fremont, California. Dr. Hartnett is also affiliated with San Leandro Medical Center.
What medical group is Dr. Erin Denali Hartnett part of?
Dr. Hartnett is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Hartnett to 1 more medical group.
Does Dr. Erin Denali Hartnett accept Medicare?
Yes. CMS data shows Dr. Hartnett billed Medicare for 12 services in 2023, and Dr. Hartnett accepts Medicare assignment.
How many Medicare patients does Dr. Erin Denali Hartnett see?
CMS counts 17 Medicare patients who saw Dr. Hartnett in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Dr. Erin Denali Hartnett bill to Medicare?
In 2023, Dr. Hartnett's most billed Medicare services were emergency department visit (99285).
Where did Dr. Erin Denali Hartnett go to medical school?
Dr. Hartnett graduated from The University of Arizona College of Medicine, Phoenix in 2021.
What drugs does Dr. Erin Denali Hartnett prescribe most?
In 2024 Medicare Part D data, Dr. Hartnett's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Amoxicillin-Clavulanate Potass.
How long has Dr. Erin Denali Hartnett been practicing?
Dr. Hartnett graduated from medical school in 2021, 5 years ago.
What insurance does Dr. Erin Denali Hartnett accept?
Dr. Hartnett is in network with 3 carriers, including United Healthcare, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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