Dr. Clark T. Bach, MD

  • Vista, CA
  • Internist
NPI1831579689PAC ID7719222371
Medicare services, 2024
643
Medicare patients, 2024
178
Part D claims, 2024
2,621
Hospital affiliations
2
Industry payments
$3,212
Practice address
130 Cedar Rd., Suite 101, Vista, CA 92083
Practice phone
Call (760) 806-5450
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Scripps Coastal Medical Center Vista - Mammography

Mammography / Breast Imaging Center · Vista, California

See all 9 affiliations

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Dr. Clark T. Bach is an internist in Vista, California

Dr. Bach practices at Scripps Coastal Medical Center Vista - Mammography in Vista, California.

Dr. Bach's NPI, 1831579689, was assigned on June 8, 2015. Dr. Bach graduated from St. George's University School of Medicine in 2015. Dr. Bach's California license number on file is A155470.

NPI and contact details
Medicare PAC ID
7719222371
NPI enumeration date
June 8, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(760) 806-5450
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

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

Dr. Clark T. Bach practices at Scripps Coastal Medical Center Vista - Mammography in Vista, California

Dr. Bach's primary practice is Scripps Coastal Medical Center Vista - Mammography, at 130 Cedar Rd., Suite 101, Vista, CA 92083. The practice phone is (760) 806-5450.

  • Scripps Coastal Medical Center Vista - Mammography
    130 Cedar Rd., Suite 101, Vista, CA 92083Phone(760) 806-5450

Source: Dmand AI Affiliation Data

Dr. Clark T. Bach is affiliated with 7 sites of care and 2 medical groups

Dr. Bach's primary practice is Scripps Coastal Medical Center Vista - Mammography in Vista, California. Dr. Bach is also affiliated with Scripps Green Hospital. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Bach to 1 more hospital, 3 home health agencies, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Bach

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

Dmand AI tracks the EHR system at Dr. Clark T. Bach's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bach practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Scripps Coastal Medical Center Vista - MammographyAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Clark T. Bach is one of 16,751 internists in California

Internal medicine is Dr. Bach's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bach is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Bach's licenses on file in 2 states: California and Illinois.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A155470 · 2018 to 2025 · taxonomy 207R00000X
  • Illinois license2015 to 2018

Clinical focus

Dmand AI lists acute mini-stroke (TIA), arthritis, asthma, atrial fibrillation and flutter, chronic diabetes, chronic hypertension, chronic kidney disease and chronic obstructive pulmonary disease (COPD) among the conditions Dr. Bach treats.

Internists near Dr. Bach

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. Clark T. Bach billed Medicare for 643 services in 2024

CMS data shows 643 Medicare services from Dr. Bach across 13 procedure codes in 2024, for 178 Medicare patients. Medicare paid $54,711 for them. Every service was in an office.

Medicare services, 2024643
Medicare patients178
Paid by Medicare$54,711
Procedure codes13

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

  • 2023
  • 2024
Office and hospital visits
2023: 3232024: 40425%
Other services
2023: 572024: 139144%
Tests and treatments
2023: 402024: 100150%

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

  • Dr. Bach
  • California median
Medicare services
643vs 36178% above
Medicare patients
178vs 15118% above
Part D claims
1,955vs 4214.6 times

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

Dr. Bach'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. Bach

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

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

Dr. Clark T. Bach treated 178 Medicare patients in 2024, average age 74

CMS counts 178 Medicare patients who saw Dr. Bach in 2024. The largest group is 65 to 74, with 78 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Bach's median patient age at 50, with 43% women.

Medicare patients, 2024178
Average age74
Average risk score1.15
Also on Medicaid16%

Dr. Bach's Medicare patients by age, 2024

Dr. Bach's Medicare patients by sex, 2024

  • Women8246%
  • Men9654%

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

  1. High cholesterol75%
  2. High blood pressure69%
  3. Arthritis44%
  4. Diabetes37%
  5. Chronic kidney disease31%
  6. Ischemic heart disease26%
  7. Anxiety22%
  8. Mood disorders22%

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

Dr. Bach's patients across all payers

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

Patient panel by age, all payers

Median age 50

Patient panel by sex, all payers

  • Women43%
  • Men56%

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

Dr. Clark T. Bach wrote 2,621 Medicare Part D claims in 2024

In 2024, Dr. Bach wrote 2,621 Medicare Part D claims for 347 patients. 87% of them were for generic drugs. CMS names the drug for 1,955 of them, across 53 drugs with 11 or more claims each, at $155,314 in total drug cost. In 2023, CMS named 2,430 claims across 70 drugs.

Part D claims, 20242,621
Drugs named by CMS53
Total drug cost$155,314
Part D patients347

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

  • Generic2,270 claims87%
  • Brand-name330 claims13%
  • Other21 claims1%

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

  • Opioids2%52 of 2,621 claims
  • Antibiotics1%34 of 2,621 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: 2,4302024: 1,95520%

Drugs named by CMS: 53 in 2024, 70 in 2023.

See all prescribing by Dr. Bach

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. Clark T. Bach offers telehealth to Medicare patients

Dr. Bach accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Bach as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

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. Clark T. Bach received $3,212 in industry payments from 2017 to 2025

CMS Open Payments shows 69 general payments to Dr. Bach from 21 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 53% of the total. Pfizer Inc. paid the most, $1,956.

General payments to Dr. Bach by program year, 2017 to 2025

General payments to Dr. Bach by kind, 2017 to 2025

$3.2Kin total
  • Food and beverage$1,69153%
  • Consulting fees$1,20037%
  • Travel and lodging$32110%

Companies that paid Dr. Bach the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Bach

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

Dr. Clark T. Bach graduated from St. George's University School of Medicine

Dr. Bach graduated from St. George's University School of Medicine in 2015.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Clark T. Bach accepts plans from 7 insurance carriers

Dr. Bach is in network with 7 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare

Plan types Dr. Bach accepts, by number of carriers

  1. Medicare5
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Clark T. Bach'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)
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. Clark T. Bach

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. Clark T. Bach's NPI number?

Dr. Clark T. Bach's NPI number is 1831579689. It was assigned on June 8, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Clark T. Bach?

Dr. Clark T. Bach is an internist in Vista, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Clark T. Bach practice?

Dr. Bach practices at 130 Cedar Rd., Suite 101, Vista, CA 92083. Dr. Bach's primary practice is Scripps Coastal Medical Center Vista - Mammography in Vista, California. Dmand AI also links Dr. Bach to 1 hospital, 3 home health agencies, 1 group practice or clinic and 1 medical group.

What is Dr. Clark T. Bach's office phone number?

The practice phone on file for Dr. Bach is (760) 806-5450.

What is Dr. Clark T. Bach's medical license number?

Dr. Bach's California license number on file is A155470, one of the licenses on file in 2 states.

Which states has Dr. Clark T. Bach been licensed in?

Dmand AI has state licenses on file for Dr. Bach in California (2018 to 2025) and Illinois (2015 to 2018).

Which hospitals is Dr. Clark T. Bach affiliated with?

Dr. Bach is affiliated with Scripps Green Hospital. Dmand AI links Dr. Bach to 1 more hospital.

What medical group is Dr. Clark T. Bach part of?

Dr. Bach is linked to Scripps Clinic Medical Group. Dmand AI links Dr. Bach to 1 more medical group.

Does Dr. Clark T. Bach accept Medicare?

Yes. CMS data shows Dr. Bach billed Medicare for 643 services in 2024, and Dr. Bach accepts Medicare assignment.

Does Dr. Clark T. Bach offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Bach as offering telehealth services.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Clark T. Bach see?

CMS counts 178 Medicare patients who saw Dr. Bach in 2024, with an average age of 74.

Is Dr. Clark T. Bach board certified?

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

What services does Dr. Clark T. Bach bill to Medicare?

In 2024, Dr. Bach's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).

Where did Dr. Clark T. Bach go to medical school?

Dr. Bach graduated from St. George's University School of Medicine in 2015.

What drugs does Dr. Clark T. Bach prescribe most?

In 2024 Medicare Part D data, Dr. Bach's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.

Has Dr. Clark T. Bach received payments from drug or device companies?

CMS Open Payments shows $3,212 in general payments to Dr. Bach from 21 companies from 2017 to 2025. The largest total came from Pfizer Inc.

How long has Dr. Clark T. Bach been practicing?

Dr. Bach graduated from medical school in 2015, 11 years ago.

What insurance does Dr. Clark T. Bach accept?

Dr. Bach is in network with 7 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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