Dr. Catherine Bach, DO
- Part D claims, 2024
- 370
- Hospital affiliations
- 1
- Industry payments
- $702
- Medical groups
- 2
- State license
- 1
- Practice address
- 1000 N Westmoreland Rd, Lake Forest, IL 60045
- Practice phone
- Call (847) 234-5600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Catherine Gratz Griffin Lake Forest Hospital
Lake Forest, Illinois
Find Dr. Bach's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Catherine Bach is a family medicine physician in Lake Forest, Illinois
Dr. Bach practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.
Dr. Bach's NPI, 1649711292, was assigned on March 15, 2017. Dr. Bach graduated from Michigan State University College of Osteopathic Medicine in 2017. Dr. Bach holds Illinois license 036151551.
- NPI
- 1649711292NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860803517
- NPI enumeration date
- March 15, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 234-5600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Catherine Bach practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois
Dr. Bach's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital, at 1000 N Westmoreland Rd, Lake Forest, IL 60045 in Lake County. The practice phone is (847) 234-5600.
- Northwestern Catherine Gratz Griffin Lake Forest Hospital1000 N Westmoreland Rd, Lake Forest, IL 60045 · Lake CountyPhone(847) 234-5600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Catherine Bach is affiliated with 3 sites of care and 2 medical groups
Dr. Bach's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dr. Bach is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Bach to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Catherine Bach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bach practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Catherine Gratz Griffin Lake Forest Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catherine Bach is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Bach's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Bach is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Bach
Counts of family medicine 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. Catherine Bach's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Dr. Bach's median patient age at 38, with 47% women.
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 38
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Catherine Bach wrote 370 Medicare Part D claims in 2024
In 2024, Dr. Bach wrote 370 Medicare Part D claims for 67 patients. 86% of them were for generic drugs. CMS names the drug for 144 of them, across 7 drugs with 11 or more claims each, at $1,611 in total drug cost. In 2023, CMS named 117 claims across 6 drugs.
Dr. Bach's Part D claims by kind of drug, 2024
- Generic317 claims86%
- Brand-name and other53 claims14%
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
- Antibiotics3%11 of 370 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: 1172024: 14423%
Drugs named by CMS: 7 in 2024, 6 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
How Dr. Catherine Bach takes part in Medicare
Dr. Bach accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Catherine Bach received $702 in industry payments from 2017 to 2024
CMS Open Payments shows 16 general payments to Dr. Bach from 11 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $195.
General payments to Dr. Bach by program year, 2017 to 2024
Companies that paid Dr. Bach the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catherine Bach graduated from Michigan State University College of Osteopathic Medicine
Dr. Bach graduated from Michigan State University College of Osteopathic Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Catherine Bach'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Catherine 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. Catherine Bach's NPI number?
Dr. Catherine Bach's NPI number is 1649711292. It was assigned on March 15, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Catherine Bach?
Dr. Catherine Bach is a family medicine physician in Lake Forest, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Catherine Bach practice?
Dr. Bach practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Dr. Bach's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Dr. Bach to 1 group practice or clinic and 1 medical group.
What is Dr. Catherine Bach's office phone number?
The practice phone on file for Dr. Bach is (847) 234-5600.
What is Dr. Catherine Bach's medical license number?
Dr. Bach holds Illinois license 036151551.
Which hospitals is Dr. Catherine Bach affiliated with?
Dr. Bach is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital.
What medical group is Dr. Catherine Bach part of?
Dr. Bach is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Bach to 1 more medical group.
Does Dr. Catherine Bach accept Medicare?
Yes. CMS lists Dr. Bach as accepting Medicare assignment.
Where did Dr. Catherine Bach go to medical school?
Dr. Bach graduated from Michigan State University College of Osteopathic Medicine in 2017.
What drugs does Dr. Catherine Bach prescribe most?
In 2024 Medicare Part D data, Dr. Bach's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Catherine Bach received payments from drug or device companies?
CMS Open Payments shows $702 in general payments to Dr. Bach from 11 companies from 2017 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Catherine Bach been practicing?
Dr. Bach graduated from medical school in 2017, 9 years ago.
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