Dr. Mark H. Schwab, MD

  • Chester, CA
  • General practice physician
NPI1134137722PAC ID0547265506
Medicare services, 2024
1,218
Medicare patients, 2024
315
Part D claims, 2024
2,247
MIPS score, 2024
86
Hospital affiliations
2
Practice address
130 Brentwood Drive, Chester, CA 96020
Practice phone
Call (530) 258-2151
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Seneca Healthcare District Hospital

Hospital · Chester, California

See all 4 affiliations

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Dr. Mark H. Schwab is a general practice physician in Chester, California

Dr. Schwab practices at Seneca Healthcare District Hospital in Chester, California, part of Seneca Healthcare District.

Dr. Schwab's NPI, 1134137722, was assigned on August 3, 2006. Dr. Schwab graduated from West Virginia University School Of Medicine in 2004. Dr. Schwab's California license number on file is A104792.

NPI and contact details
Medicare PAC ID
0547265506
NPI enumeration date
August 3, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(530) 258-2151
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
48
Medical school graduation
2004

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

Dr. Mark H. Schwab practices at Seneca Healthcare District Hospital in Chester, California

Dr. Schwab's primary practice is Seneca Healthcare District Hospital, at 130 Brentwood Drive, Chester, CA 96020 in Plumas County. The practice phone is (530) 258-2151.

Source: Dmand AI Affiliation Data

Dr. Mark H. Schwab is affiliated with 2 sites of care and 2 medical groups

Dr. Schwab's primary practice is Seneca Healthcare District Hospital in Chester, California, part of Seneca Healthcare District. Dr. Schwab is also affiliated with Enloe Health. The medical group on file is Seneca Healthcare District. Dmand AI also links Dr. Schwab to 1 more medical group, named with a free account. Dr. Schwab's employer is on file too: a hospital.

See all 4 affiliations for Dr. Schwab

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark H. Schwab's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schwab practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Seneca Healthcare District HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Mark H. Schwab is one of 1,526 general practice physicians in California

General practice is Dr. Schwab's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Schwab is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Schwab's licenses on file in 3 states: California, Maine and Alabama.

Specialties and state licenses

  • General practice, CaliforniaPrimaryLicense A104792 · 2008 to 2025 · taxonomy 208D00000X
  • Maine licenseSince 2005
  • Emergency medicine, AlabamaLicense 00027258 · 2006 to 2011 · taxonomy 207P00000X

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, acute mini-stroke (TIA), acute sinusitis, acute skin infection, ADHD, aneurysm and anxiety among the conditions Dr. Schwab treats.

General practice physicians near Dr. Schwab

Counts of general practice 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. Mark H. Schwab billed Medicare for 1,218 services in 2024

CMS data shows 1,218 Medicare services from Dr. Schwab across 26 procedure codes in 2024, for 315 Medicare patients. Medicare paid $30,784 for them. Every service was in an office.

Medicare services, 20241,218
Medicare patients315
Paid by Medicare$30,784
Procedure codes26

Dr. Schwab's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 3,0362024: 63279%
Office and hospital visits
2023: 1,4822024: 37375%
Surgery
2023: 4522024: 14368%
Other services
2023: 5222024: 5889%
Imaging
2023: 572024: 1279%
Drugs given in the office
2023: 9862024: 0100%
Tests and treatments
2023: 1822024: 0100%

Dr. Schwab compared with the California median for general practice physicians, 2024

  • Dr. Schwab
  • California median
Medicare services
1,218vs 2624.6 times
Medicare patients
315vs 1362.3 times
Part D claims
1,609vs 1928.4 times

Medians across 1,114 general practice physicians in California with Dmand AI profiles that report each measure.

Dr. Schwab'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. Schwab

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

Dr. Mark H. Schwab treated 315 Medicare patients in 2024, average age 75

CMS counts 315 Medicare patients who saw Dr. Schwab in 2024. The largest group is 65 to 74, with 146 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Schwab's median patient age at 76, with 48% women.

Medicare patients, 2024315
Average age75
Average risk score1.05
Also on Medicaid7%

Dr. Schwab's Medicare patients by age, 2024

Dr. Schwab's Medicare patients by sex, 2024

  • Women17255%
  • Men14345%

Chronic conditions among Dr. Schwab's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis37%
  4. Chronic kidney disease32%
  5. Diabetes28%
  6. Mood disorders22%
  7. Depression20%
  8. Atrial fibrillation19%

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

Dr. Schwab's patients across all payers

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

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women48%
  • Men52%

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

Dr. Mark H. Schwab wrote 2,247 Medicare Part D claims in 2024

In 2024, Dr. Schwab wrote 2,247 Medicare Part D claims for 363 patients. 88% of them were for generic drugs. CMS names the drug for 1,609 of them, across 51 drugs with 11 or more claims each, at $38,899 in total drug cost. In 2023, CMS named 3,134 claims across 95 drugs.

Part D claims, 20242,247
Drugs named by CMS51
Total drug cost$38,899
Part D patients363

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

  • Generic1,973 claims88%
  • Brand-name256 claims11%
  • Other18 claims1%

Dr. Schwab'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. Schwab's Part D claims, 2024

  • Opioids3%57 of 2,247 claims
  • Antibiotics4%83 of 2,247 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: 3,1342024: 1,60949%

Drugs named by CMS: 51 in 2024, 95 in 2023.

See all prescribing by Dr. Schwab

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. Mark H. Schwab scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Schwab for performance year 2024, reported as part of a group. Dr. Schwab accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Schwab's MIPS scores, performance year 2024

  • 86of 100Final score
  • 78.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. Mark H. Schwab received $3,305 in industry payments from 2019 to 2024

CMS Open Payments shows 202 general payments to Dr. Schwab from 22 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,220.

General payments to Dr. Schwab by program year, 2019 to 2024

Companies that paid Dr. Schwab the most, 2019 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Schwab

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

Dr. Mark H. Schwab graduated from West Virginia University School Of Medicine

Dr. Schwab graduated from West Virginia University School Of Medicine in 2004.

  1. Medical schoolWest Virginia University School Of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark H. Schwab accepts plans from 6 insurance carriers

Dr. Schwab is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • United Healthcare
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • Elevance
  • HCSC

Plan types Dr. Schwab accepts, by number of carriers

  1. PPO3
  2. Medicare2
  3. POS2
  4. EPO1
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark H. Schwab'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Mark H. Schwab

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. Mark H. Schwab's NPI number?

Dr. Mark H. Schwab's NPI number is 1134137722. It was assigned on August 3, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark H. Schwab?

Dr. Mark H. Schwab is a general practice physician in Chester, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).

Where does Dr. Mark H. Schwab practice?

Dr. Schwab practices at 130 Brentwood Drive, Chester, CA 96020. Dr. Schwab's primary practice is Seneca Healthcare District Hospital in Chester, California, part of Seneca Healthcare District. Dmand AI also links Dr. Schwab to 1 medical group.

What is Dr. Mark H. Schwab's office phone number?

The practice phone on file for Dr. Schwab is (530) 258-2151.

What is Dr. Mark H. Schwab's medical license number?

Dr. Schwab's California license number on file is A104792, one of the licenses on file in 3 states.

Which states has Dr. Mark H. Schwab been licensed in?

Dmand AI has state licenses on file for Dr. Schwab in California (2008 to 2025), Maine (since 2005) and Alabama (2006 to 2011).

Which hospitals is Dr. Mark H. Schwab affiliated with?

Dr. Schwab practices at Seneca Healthcare District Hospital in Chester, California. Dr. Schwab is also affiliated with Enloe Health.

What medical group is Dr. Mark H. Schwab part of?

Dr. Schwab is linked to Seneca Healthcare District. Dmand AI links Dr. Schwab to 1 more medical group.

Does Dr. Mark H. Schwab accept Medicare?

Yes. CMS data shows Dr. Schwab billed Medicare for 1,218 services in 2024, and Dr. Schwab accepts Medicare assignment.

What is Dr. Mark H. Schwab's MIPS score?

Dr. Schwab's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Mark H. Schwab see?

CMS counts 315 Medicare patients who saw Dr. Schwab in 2024, with an average age of 75.

Is Dr. Mark H. Schwab board certified?

Yes. Dr. Schwab is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. Mark H. Schwab bill to Medicare?

In 2024, Dr. Schwab's most billed Medicare services were office visit, established patient (99213), surgery: heart and blood vessels (36415) and lab and pathology test (80053).

Where did Dr. Mark H. Schwab go to medical school?

Dr. Schwab graduated from West Virginia University School Of Medicine in 2004.

What drugs does Dr. Mark H. Schwab prescribe most?

In 2024 Medicare Part D data, Dr. Schwab's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Metformin HCl.

Has Dr. Mark H. Schwab received payments from drug or device companies?

CMS Open Payments shows $3,305 in general payments to Dr. Schwab from 22 companies from 2019 to 2024. The largest total came from Abbvie Inc.

How long has Dr. Mark H. Schwab been practicing?

Dr. Schwab graduated from medical school in 2004, 22 years ago.

What insurance does Dr. Mark H. Schwab accept?

Dr. Schwab is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

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