Dr. Philip C. Mathis, MD

  • Escondido, CA
  • Internist
NPI1942200399PAC ID6002868262
Medicare services, 2024
737
Medicare patients, 2024
123
Part D claims, 2024
25
Hospital affiliations
1
Industry payments
$446
Practice address
2185 Citracado Pkwy, Escondido, CA 92029
Practice phone
Call (442) 281-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Palomar Medical Center Escondido

Escondido, California

See all 7 affiliations

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Dr. Philip C. Mathis is an internist in Escondido, California

Dr. Mathis practices at Palomar Medical Center Escondido in Escondido, California.

Dr. Mathis' NPI, 1942200399, was assigned on July 28, 2005. Dr. Mathis graduated from Keck School of Medicine of USC in 1976. Dr. Mathis holds California license G34690.

NPI and contact details
Medicare PAC ID
6002868262
NPI enumeration date
July 28, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(442) 281-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
76
Medical school graduation
1976

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

Dr. Philip C. Mathis practices at Palomar Medical Center Escondido in Escondido, California

Dr. Mathis' primary practice is Palomar Medical Center Escondido, at 2185 Citracado Pkwy, Escondido, CA 92029 in San Diego County. The practice phone is (442) 281-5000.

  • Palomar Medical Center Escondido
    2185 Citracado Pkwy, Escondido, CA 92029 · San Diego CountyPhone(442) 281-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Philip C. Mathis is affiliated with 5 sites of care and 2 medical groups

Dr. Mathis' primary practice is Palomar Medical Center Escondido in Escondido, California. Dr. Mathis is also affiliated with Palomar Medical Center Downtown Escondido. The medical group on file is Palomar Health Medical Group. Dmand AI also links Dr. Mathis to 2 more group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Mathis

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Philip C. Mathis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mathis practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Palomar Medical Center EscondidoAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Philip C. Mathis is one of 16,751 internists in California

Internal medicine is Dr. Mathis' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mathis is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Mathis' licenses on file in 5 states: California, Arizona, Michigan, Nevada and Washington.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G34690 · 1977 to 2026 · taxonomy 207R00000X
  • Arizona license2022 to 2024
  • Michigan license2021 to 2024
  • Nevada license2022 to 2023
  • Washington license2021 to 2023

Internists near Dr. Mathis

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. Philip C. Mathis billed Medicare for 737 services in 2024

CMS data shows 737 Medicare services from Dr. Mathis across 8 procedure codes in 2024, for 123 Medicare patients. Medicare paid $49,663 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024737
Medicare patients123
Paid by Medicare$49,663
Procedure codes8

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

  • 2023
  • 2024
Office and hospital visits
2023: 6212024: 54113%
Tests and treatments
2023: 1312024: 1236%
Surgery
2023: 952024: 7323%

Dr. Mathis compared with the California median for internists, 2024

  • Dr. Mathis
  • California median
Medicare services
737vs 3612.0 times
Medicare patients
123vs 15119% below
Part D claims
96vs 42177% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Mathis' 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. Mathis

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Philip C. Mathis treated 123 Medicare patients in 2024, average age 75

CMS counts 123 Medicare patients who saw Dr. Mathis in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.26, 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. Mathis' median patient age at 65, with 46% women.

Medicare patients, 2024123
Average age75
Average risk score2.26
Also on Medicaid29%

Dr. Mathis' Medicare patients by age, 2024

Dr. Mathis' Medicare patients by sex, 2024

  • Women5847%
  • Men6553%

Chronic conditions among Dr. Mathis' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Diabetes38%
  5. Atrial fibrillation33%
  6. Chronic kidney disease32%
  7. Heart failure28%
  8. Ischemic heart disease28%

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

Dr. Mathis' patients across all payers

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

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women46%
  • Men53%

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

Dr. Philip C. Mathis wrote 25 Medicare Part D claims in 2024

In 2024, Dr. Mathis wrote 25 Medicare Part D claims for 12 patients. 80% of them were for generic drugs. They cover 7 drugs, with $732 in total drug cost. In 2018, CMS named 80 claims across 5 drugs.

Part D claims, 202425
Drugs named by CMS7
Total drug cost$732
Part D patients12

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

  • Generic20 claims80%
  • Brand-name and other5 claims20%

Dr. Mathis' most prescribed drugs by claims, 2019

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2018 to 2019

  • 2018
  • 2019
Claims for drugs CMS names
2018: 802019: 9620%

Drugs named by CMS: 7 in 2019, 5 in 2018.

See all prescribing by Dr. Mathis

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. Philip C. Mathis ranks in the 87th percentile for removal of tissue in Medicare

Dr. Mathis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 118 procedures of removal of tissue by Dr. Mathis, more than 87% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Mathis ranks in Medicare procedure volume

Removal of tissue
87th percentile118 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Philip C. Mathis received $446 in industry payments from 2016 to 2025

CMS Open Payments shows 9 general payments to Dr. Mathis from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Organogenesis Inc. paid the most, $231.

General payments to Dr. Mathis by program year, 2016 to 2025

Companies that paid Dr. Mathis the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Mathis

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Philip C. Mathis has 1 award and honors on record

Dmand AI lists 1 award for Dr. Mathis.

Awards and honors for Dr. Mathis

  1. Undated
    • Checkbook Top Doc

Source: Dmand AI Professional Profile Data

Dr. Philip C. Mathis graduated from Keck School of Medicine of USC

Dr. Mathis graduated from Keck School of Medicine of USC in 1976.

  1. Medical schoolKeck School of Medicine of USC
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Philip C. Mathis accepts plans from 5 insurance carriers

Dr. Mathis is in network with 5 carriers, including Excellus BlueCross BlueShield, Molina and Cigna. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield
  • Molina
  • Cigna
  • CMS Medicare
  • RI State Medicaid

Plan types Dr. Mathis accepts, by number of carriers

  1. Medicare3
  2. HMO2
  3. PPO2
  4. EPO1
  5. Medicaid1
  6. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Philip C. Mathis'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
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. Philip C. Mathis

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. Philip C. Mathis' NPI number?

Dr. Philip C. Mathis' NPI number is 1942200399. It was assigned on July 28, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Philip C. Mathis?

Dr. Philip C. Mathis is an internist in Escondido, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Philip C. Mathis practice?

Dr. Mathis practices at 2185 Citracado Pkwy, Escondido, CA 92029. Dr. Mathis' primary practice is Palomar Medical Center Escondido in Escondido, California. Dmand AI also links Dr. Mathis to 2 group practices and clinics, 1 home health agency and 1 medical group.

What is Dr. Philip C. Mathis' office phone number?

The practice phone on file for Dr. Mathis is (442) 281-5000.

What is Dr. Philip C. Mathis' medical license number?

Dr. Mathis holds California license G34690, one of the licenses on file in 5 states.

Which states has Dr. Philip C. Mathis been licensed in?

Dmand AI has state licenses on file for Dr. Mathis in California (1977 to 2026), Arizona (2022 to 2024), Michigan (2021 to 2024), Nevada (2022 to 2023) and Washington (2021 to 2023).

Which hospitals is Dr. Philip C. Mathis affiliated with?

Dr. Mathis is affiliated with Palomar Medical Center Downtown Escondido.

What medical group is Dr. Philip C. Mathis part of?

Dr. Mathis is linked to Palomar Health Medical Group. Dmand AI links Dr. Mathis to 1 more medical group.

Does Dr. Philip C. Mathis accept Medicare?

Yes. CMS data shows Dr. Mathis billed Medicare for 737 services in 2024, and Dr. Mathis accepts Medicare assignment.

How many Medicare patients does Dr. Philip C. Mathis see?

CMS counts 123 Medicare patients who saw Dr. Mathis in 2024, with an average age of 75.

Show 7 more questionsShow fewer questions

Is Dr. Philip C. Mathis board certified?

Yes. Dr. Mathis is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Philip C. Mathis bill to Medicare?

In 2024, Dr. Mathis' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and special service (99183).

Where did Dr. Philip C. Mathis go to medical school?

Dr. Mathis graduated from Keck School of Medicine of USC in 1976.

What drugs does Dr. Philip C. Mathis prescribe most?

In 2019 Medicare Part D data, Dr. Mathis' most prescribed drugs by claims were Mupirocin, Oxycodone-Acetaminophen and Hydrocodone-Acetaminophen.

Has Dr. Philip C. Mathis received payments from drug or device companies?

CMS Open Payments shows $446 in general payments to Dr. Mathis from 5 companies from 2016 to 2025. The largest total came from Organogenesis Inc.

How long has Dr. Philip C. Mathis been practicing?

Dr. Mathis graduated from medical school in 1976, 50 years ago.

What insurance does Dr. Philip C. Mathis accept?

Dr. Mathis is in network with 5 carriers, including Excellus BlueCross BlueShield, Molina and Cigna. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

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