Dr. Joanna L. Gunn, MD
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 5,807
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, California
Find Dr. Gunn'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. Joanna L. Gunn is an internist in San Diego, California
Dr. Gunn practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Gunn's NPI, 1427106210, was assigned on January 8, 2007. Dr. Gunn graduated from Tufts University School Of Medicine in 2002. Dr. Gunn holds California license A89978.
- NPI
- 1427106210NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678599149
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joanna L. Gunn practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Gunn's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joanna L. Gunn is affiliated with 2 sites of care and 1 medical group
Dr. Gunn's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Gunn to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Joanna L. Gunn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gunn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente San Diego Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joanna L. Gunn is one of 16,751 internists in California
Internal medicine is Dr. Gunn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gunn is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Gunn's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Massachusetts license
Clinical focus
Dmand AI lists chronic diabetes and high cholesterol among the conditions Dr. Gunn treats.
Internists near Dr. Gunn
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. Joanna L. Gunn treated 13 Medicare patients in 2024, average age 59
CMS counts 13 Medicare patients who saw Dr. Gunn in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 2.03, 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. Gunn's median patient age at 58, with 72% women.
Dr. Gunn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gunn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women72%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joanna L. Gunn wrote 5,807 Medicare Part D claims in 2024
In 2024, Dr. Gunn wrote 5,807 Medicare Part D claims for 774 patients. 89% of them were for generic drugs. CMS names the drug for 5,214 of them, across 90 drugs with 11 or more claims each, at $251,890 in total drug cost. In 2023, CMS named 4,728 claims across 83 drugs.
Dr. Gunn's Part D claims by kind of drug, 2024
- Generic5,176 claims89%
- Brand-name560 claims10%
- Other71 claims1%
Dr. Gunn'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. Gunn's Part D claims, 2024
- Opioids5%283 of 5,807 claims
- Antibiotics2%109 of 5,807 claims
- Antipsychotics, patients 65 and over0%12 of 5,807 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: 4,7282024: 5,21410%
Drugs named by CMS: 90 in 2024, 83 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. Joanna L. Gunn takes part in Medicare
Dr. Gunn 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. Joanna L. Gunn has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Gunn, most recently NCQA HSRP in 2015.
Awards and honors for Dr. Gunn
- 2015
- NCQA HSRP
- 2013
- NCQA DRP
- 2012
- Bridges to Excellence
- Undated
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Joanna L. Gunn graduated from Tufts University School Of Medicine
Dr. Gunn graduated from Tufts University School Of Medicine in 2002. Dr. Gunn is a member of ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Joanna L. Gunn accepts plans from 2 insurance carriers
Dr. Gunn 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. Gunn accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joanna L. Gunn'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| 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. Joanna L. Gunn
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. Joanna L. Gunn's NPI number?
Dr. Joanna L. Gunn's NPI number is 1427106210. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Joanna L. Gunn?
Dr. Joanna L. Gunn is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Joanna L. Gunn practice?
Dr. Gunn practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Gunn's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Gunn to 1 group practice or clinic.
What is Dr. Joanna L. Gunn's office phone number?
The practice phone on file for Dr. Gunn is (619) 528-5000.
What is Dr. Joanna L. Gunn's medical license number?
Dr. Gunn holds California license A89978, one of the licenses on file in 2 states.
Which states has Dr. Joanna L. Gunn been licensed in?
Dmand AI has state licenses on file for Dr. Gunn in California (2005 to 2026) and Massachusetts (2004 to 2005).
What medical group is Dr. Joanna L. Gunn part of?
Dr. Gunn is linked to Southern California Permanente Medical Group.
Does Dr. Joanna L. Gunn accept Medicare?
Yes. CMS lists Dr. Gunn as accepting Medicare assignment.
How many Medicare patients does Dr. Joanna L. Gunn see?
CMS counts 13 Medicare patients who saw Dr. Gunn in 2024, with an average age of 59.
Is Dr. Joanna L. Gunn board certified?
Yes. Dr. Gunn is board certified in internal medicine by the American Board of Internal Medicine.
Show 4 more questionsShow fewer questions
Where did Dr. Joanna L. Gunn go to medical school?
Dr. Gunn graduated from Tufts University School Of Medicine in 2002.
What drugs does Dr. Joanna L. Gunn prescribe most?
In 2024 Medicare Part D data, Dr. Gunn's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Levothyroxine Sodium.
How long has Dr. Joanna L. Gunn been practicing?
Dr. Gunn graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Joanna L. Gunn accept?
Dr. Gunn 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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