Dr. Patrick Andrew Armstrong, MD

  • Poway, CA
  • Dermatologist
NPI1588008775PAC ID1658644539
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Poway Surgery Center

Surgery Center - Medicare-Certified · Poway, California

See all 4 affiliations

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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 and contact details
Medicare PAC ID
1658644539
NPI enumeration date
April 18, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(858) 521-0031
Professional email
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Personal email
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Mobile number
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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 Center
    15611 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.

See all 4 affiliations for Dr. Armstrong

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.

EHR by site
SiteEHR vendor and product
Poway Surgery CenterAvailable with a free account
+2 more affiliated sitesAvailable 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, CaliforniaPrimaryLicense A137103 · 2015 to 2026 · taxonomy 207N00000X
  • Student in an organized health care education/training program, TexasLicense BP10045786 · taxonomy 390200000X

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.

1,910dermatologists in California
6dermatologists in Poway

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.

Medicare services, 20242,776
Medicare patients419
Paid by Medicare$126,183
Procedure codes19

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.

See all procedures by Dr. Armstrong

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Armstrong and other dermatologists in California.

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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.

Medicare patients, 2024419
Average age76
Average risk score1.00
Also on Medicaid10%

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

  1. High cholesterol73%
  2. High blood pressure68%
  3. Arthritis43%
  4. Diabetes23%
  5. Chronic kidney disease22%
  6. Atrial fibrillation18%
  7. Osteoporosis18%
  8. 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.

Part D claims, 2024772
Drugs named by CMS15
Total drug cost$130,809
Part D patients306

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.

See all prescribing by Dr. Armstrong

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.

Papers7
Years published2011 to 2015

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

Recent publications by Dr. Armstrong

See all 7 publications and co-authors

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.

How network discovery works

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

$6.9Kin total
  • 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.

See all payments to Dr. Armstrong

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

  1. 2012
    • Alpha Omega Alpha Honor Medical Society
    • Gold Humanism Honor Society
  2. 2011
    • M. Jeanne Fairweather, MD Scholarship Endowment
  3. 2010
    • Jeane B Kempner Research Fellowship Award
  4. 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.

  1. Medical schoolUTMB Health
  2. Board certified in dermatologyAmerican Board of 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

  1. Medicare8
  2. PPO6
  3. HMO4
  4. POS3
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Patrick Andrew Armstrong'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. 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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