Dr. Patrick Andrew Armstrong, MD
- Medicare services, 2024
- 2,776
- Medicare patients, 2024
- 419
- Part D claims, 2024
- 772
- Publications
- 7
- Hospital affiliations
- 1
- Practice address
- 15611 Pomerado Rd, Poway, CA 92064
- Practice phone
- Call (858) 521-0031
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Poway Surgery Center
Surgery Center - Medicare-Certified · Poway, California
Find Dr. Armstrong's professional email, personal email and mobile number
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Dr. Patrick Andrew Armstrong is a dermatologist in Poway, California
Dr. Armstrong practices at Poway Surgery Center in Poway, California.
Dr. Armstrong's NPI, 1588008775, was assigned on April 18, 2013. Dr. Armstrong graduated from UTMB Health in 2013. Dr. Armstrong holds California license A137103.
- NPI
- 1588008775NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658644539
- NPI enumeration date
- April 18, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 521-0031
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick Andrew Armstrong practices at Poway Surgery Center in Poway, California
Dr. Armstrong's primary practice is Poway Surgery Center, at 15611 Pomerado Rd, Poway, CA 92064. The practice phone is (858) 521-0031.
- Poway Surgery Center15611 Pomerado Rd, Poway, CA 92064Phone(858) 521-0031
Source: Dmand AI Affiliation Data
Dr. Patrick Andrew Armstrong is affiliated with 3 sites of care and 1 medical group
Dr. Armstrong's primary practice is Poway Surgery Center in Poway, California. Dr. Armstrong is also affiliated with Palomar Medical Center Downtown Escondido. The medical group on file is Palomar Health Medical Group. Dmand AI also links Dr. Armstrong to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Patrick Andrew Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Poway Surgery Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick Andrew Armstrong is one of 1,910 dermatologists in California
Dermatology is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Armstrong is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Armstrong's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
- Student in an organized health care education/training program, Texas
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cold sores or genital herpes, contact dermatitis, hives, itchy rashes and joint cyst among the conditions Dr. Armstrong treats.
Dermatologists near Dr. Armstrong
Counts of dermatologists 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. Patrick Andrew Armstrong billed Medicare for 2,776 services in 2024
CMS data shows 2,776 Medicare services from Dr. Armstrong across 19 procedure codes in 2024, for 419 Medicare patients. Medicare paid $126,183 for them. Every service was in an office.
Dr. Armstrong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,9832024: 2,1307%
- Office and hospital visits
- 2023: 6422024: 6461%
Dr. Armstrong compared with the California median for dermatologists, 2024
- Dr. Armstrong
- California median
- Medicare services
- 2,776vs 1,75059% above
- Medicare patients
- 419vs 37711% above
- Part D claims
- 646vs 36776% above
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Armstrong'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.
Need commercial claims for Dr. Armstrong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Armstrong and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick Andrew Armstrong treated 419 Medicare patients in 2024, average age 76
CMS counts 419 Medicare patients who saw Dr. Armstrong in 2024. The largest group is 75 to 84, with 184 patients. 73% of them have high cholesterol, and 68% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 69, with 46% women.
Dr. Armstrong's Medicare patients by age, 2024
Dr. Armstrong's Medicare patients by sex, 2024
- Women19747%
- Men22253%
Chronic conditions among Dr. Armstrong's Medicare patients, 2024
- High cholesterol73%
- High blood pressure68%
- Arthritis43%
- Diabetes23%
- Chronic kidney disease22%
- Atrial fibrillation18%
- Osteoporosis18%
- Ischemic heart disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women46%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick Andrew Armstrong wrote 772 Medicare Part D claims in 2024
In 2024, Dr. Armstrong wrote 772 Medicare Part D claims for 306 patients. 94% of them were for generic drugs. CMS names the drug for 646 of them, across 15 drugs with 11 or more claims each, at $130,809 in total drug cost. In 2023, CMS named 760 claims across 15 drugs.
Dr. Armstrong's Part D claims by kind of drug, 2024
- Generic723 claims94%
- Brand-name49 claims6%
Dr. Armstrong'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. Armstrong's Part D claims, 2024
- Antibiotics2%14 of 772 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: 7602024: 64615%
Drugs named by CMS: 15 in 2024, 15 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. Patrick Andrew Armstrong ranks in the 93rd percentile for removal of skin lesions in Medicare
Dr. Armstrong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 1,039 procedures of removal of skin lesions by Dr. Armstrong, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Armstrong ranks in Medicare procedure volume
- Removal of skin lesions
- 93rd percentile1,039 procedures
- Removal or shaving of skin growth
- 86th percentile130 procedures
- Skin biopsy
- 79th percentile129 procedures
- Melanoma (skin cancer) excision
- 85th percentile43 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Patrick Andrew Armstrong has 7 publications on record
Dmand AI links 7 papers to Dr. Armstrong, published from 2011 to 2015. 2011 was the busiest year, with 2. The most frequent topics are Caspase 3 and Mice, Inbred C57BL. Dr. Armstrong's most frequent co-authors are Tomoko Makishima, MD, Dayna Gwinup Diven, MD and Jason S. Reichenberg, MD.
Dr. Armstrong's papers by year, 2011 to 2015
Topics Dr. Armstrong writes about most
- Caspase 3
- Mice, Inbred C57BL
Dr. Armstrong's most frequent co-authors
- Tomoko Makishima, MD4 shared papers
- Dayna Gwinup Diven, MD2 shared papers
- Jason S. Reichenberg, MD2 shared papers
Recent publications by Dr. Armstrong
See who Dr. Armstrong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Armstrong works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Patrick Andrew Armstrong received $6,920 in industry payments from 2016 to 2025
CMS Open Payments shows 279 general payments to Dr. Armstrong from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Pfizer Inc. paid the most, $776.
General payments to Dr. Armstrong by program year, 2016 to 2025
General payments to Dr. Armstrong by kind, 2016 to 2025
- Food and beverage$6,80598%
- Education$1142%
Companies that paid Dr. Armstrong the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick Andrew Armstrong has 5 awards and honors on record
Dmand AI lists 5 awards for Dr. Armstrong, most recently Alpha Omega Alpha Honor Medical Society in 2012.
Awards and honors for Dr. Armstrong
- 2012
- Alpha Omega Alpha Honor Medical Society
- Gold Humanism Honor Society
- 2011
- M. Jeanne Fairweather, MD Scholarship Endowment
- 2010
- Jeane B Kempner Research Fellowship Award
- 2007
- Phi Kappa Phi Honors Society
Source: Dmand AI Professional Profile Data
Dr. Patrick Andrew Armstrong graduated from UTMB Health
Dr. Armstrong graduated from UTMB Health in 2013. Dr. Armstrong is a member of AAD and Pacific Dermatology Association.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Patrick Andrew Armstrong accepts plans from 8 insurance carriers
Dr. Armstrong is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
Plan types Dr. Armstrong accepts, by number of carriers
- Medicare8
- PPO6
- HMO4
- POS3
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Patrick Andrew Armstrong'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Patrick Andrew Armstrong
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. Patrick Andrew Armstrong's NPI number?
Dr. Patrick Andrew Armstrong's NPI number is 1588008775. It was assigned on April 18, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Andrew Armstrong?
Dr. Patrick Andrew Armstrong is a dermatologist in Poway, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Patrick Andrew Armstrong practice?
Dr. Armstrong practices at 15611 Pomerado Rd, Poway, CA 92064. Dr. Armstrong's primary practice is Poway Surgery Center in Poway, California. Dmand AI also links Dr. Armstrong to 1 group practice or clinic.
What is Dr. Patrick Andrew Armstrong's office phone number?
The practice phone on file for Dr. Armstrong is (858) 521-0031.
What is Dr. Patrick Andrew Armstrong's medical license number?
Dr. Armstrong holds California license A137103, one of the licenses on file in 2 states.
Which states has Dr. Patrick Andrew Armstrong been licensed in?
Dmand AI has state licenses on file for Dr. Armstrong in California (2015 to 2026) and Texas.
Which hospitals is Dr. Patrick Andrew Armstrong affiliated with?
Dr. Armstrong is affiliated with Palomar Medical Center Downtown Escondido.
What medical group is Dr. Patrick Andrew Armstrong part of?
Dr. Armstrong is linked to Palomar Health Medical Group.
Does Dr. Patrick Andrew Armstrong accept Medicare?
Yes. CMS data shows Dr. Armstrong billed Medicare for 2,776 services in 2024, and Dr. Armstrong accepts Medicare assignment.
How many Medicare patients does Dr. Patrick Andrew Armstrong see?
CMS counts 419 Medicare patients who saw Dr. Armstrong in 2024, with an average age of 76.
Show 9 more questionsShow fewer questions
Is Dr. Patrick Andrew Armstrong board certified?
Yes. Dr. Armstrong is board certified in dermatology by the American Board of Dermatology.
What services does Dr. Patrick Andrew Armstrong bill to Medicare?
In 2024, Dr. Armstrong's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
Where did Dr. Patrick Andrew Armstrong go to medical school?
Dr. Armstrong graduated from UTMB Health in 2013.
What drugs does Dr. Patrick Andrew Armstrong prescribe most?
In 2024 Medicare Part D data, Dr. Armstrong's most prescribed drugs by claims were Triamcinolone Acetonide, Clobetasol Propionate and Ketoconazole.
Has Dr. Patrick Andrew Armstrong received payments from drug or device companies?
CMS Open Payments shows $6,920 in general payments to Dr. Armstrong from 30 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Patrick Andrew Armstrong been practicing?
Dr. Armstrong graduated from medical school in 2013, 13 years ago.
Does Dr. Patrick Andrew Armstrong do research?
Dmand AI links 7 publications to Dr. Armstrong, published from 2011 to 2015.
Who does Dr. Patrick Andrew Armstrong publish with?
Dr. Armstrong's most frequent co-authors are Tomoko Makishima, MD (4 shared papers), Dayna Gwinup Diven, MD (2 shared papers) and Jason S. Reichenberg, MD (2 shared papers).
What insurance does Dr. Patrick Andrew Armstrong accept?
Dr. Armstrong is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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