Dr. Jacob Lamberton, MD
- Medicare services, 2024
- 163
- Medicare patients, 2024
- 114
- Part D claims, 2024
- 122
- Hospital affiliations
- 4
- Industry payments
- $20
- Practice address
- 4935 S 76th St, Milwaukee, WI 53220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Wisconsin Greenfield Campus - HOPD
Acute Care Hospital outpatient department · Milwaukee, Wisconsin
Find Dr. Lamberton's professional email, personal email and mobile number
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Dr. Jacob Lamberton is an emergency medicine physician in Milwaukee, Wisconsin
Dr. Lamberton practices at Ascension Wisconsin Greenfield Campus - HOPD in Milwaukee, Wisconsin.
Dr. Lamberton's NPI, 1932775921, was assigned on May 31, 2021. Dr. Lamberton graduated from Medical College of Wisconsin in 2021. Dr. Lamberton holds Illinois license 125078519.
- NPI
- 1932775921NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658774336
- NPI enumeration date
- May 31, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Lamberton practices at Ascension Wisconsin Greenfield Campus - HOPD in Milwaukee, Wisconsin
Dr. Lamberton's primary practice is Ascension Wisconsin Greenfield Campus - HOPD, at 4935 S 76th St, Milwaukee, WI 53220.
- Ascension Wisconsin Greenfield Campus - HOPD4935 S 76th St, Milwaukee, WI 53220
Source: Dmand AI Affiliation Data
Dr. Jacob Lamberton is affiliated with 5 sites of care and 1 medical group
Dr. Lamberton's primary practice is Ascension Wisconsin Greenfield Campus - HOPD in Milwaukee, Wisconsin. Dr. Lamberton is also affiliated with Ascension SE Wisconsin Hospital - St. Joseph. The medical group on file is Emergency Medicine Specialists, S.C. Dmand AI also links Dr. Lamberton to 3 more hospitals, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jacob Lamberton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lamberton practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Wisconsin Greenfield Campus - HOPD | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jacob Lamberton is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Lamberton's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Lamberton is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Lamberton
Counts of emergency 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. Jacob Lamberton billed Medicare for 163 services in 2024
CMS data shows 163 Medicare services from Dr. Lamberton across 4 procedure codes in 2024, for 114 Medicare patients. Medicare paid $13,075 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lamberton's Medicare services by type, 2024
- Office and hospital visits99
- Tests and treatments64
Dr. Lamberton compared with the Wisconsin median for emergency medicine physicians, 2024
- Dr. Lamberton
- Wisconsin median
- Medicare services
- 163vs 24634% below
- Medicare patients
- 114vs 22148% below
- Part D claims
- 13vs 5777% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Lamberton'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lamberton and other emergency medicine physicians in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Lamberton treated 114 Medicare patients in 2024, average age 73
CMS counts 114 Medicare patients who saw Dr. Lamberton in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 34% are also on Medicaid. Their average risk score is 1.78, 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. Lamberton's median patient age at 51, with 58% women.
Dr. Lamberton's Medicare patients by age, 2024
Dr. Lamberton's Medicare patients by sex, 2024
- Women7061%
- Men4439%
Chronic conditions among Dr. Lamberton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis54%
- Mood disorders48%
- Anxiety44%
- Depression44%
- Ischemic heart disease34%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lamberton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Lamberton wrote 122 Medicare Part D claims in 2024
In 2024, Dr. Lamberton wrote 122 Medicare Part D claims for 90 patients. 91% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $116 in total drug cost. In 2023, CMS named 51 claims across 3 drugs.
Dr. Lamberton's Part D claims by kind of drug, 2024
- Generic111 claims91%
- Brand-name11 claims9%
Dr. Lamberton'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. Lamberton's Part D claims, 2024
- Antibiotics23%28 of 122 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: 512024: 1375%
Drugs named by CMS: 1 in 2024, 3 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. Jacob Lamberton takes part in Medicare
Dr. Lamberton 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. Jacob Lamberton received $20 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Lamberton from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $20.
Companies that paid Dr. Lamberton the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jacob Lamberton graduated from Medical College of Wisconsin
Dr. Lamberton graduated from Medical College of Wisconsin in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jacob Lamberton'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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. Jacob Lamberton
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. Jacob Lamberton's NPI number?
Dr. Jacob Lamberton's NPI number is 1932775921. It was assigned on May 31, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Lamberton?
Dr. Jacob Lamberton is an emergency medicine physician in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jacob Lamberton practice?
Dr. Lamberton practices at 4935 S 76th St, Milwaukee, WI 53220. Dr. Lamberton's primary practice is Ascension Wisconsin Greenfield Campus - HOPD in Milwaukee, Wisconsin. Dmand AI also links Dr. Lamberton to 3 hospitals.
What is Dr. Jacob Lamberton's medical license number?
Dr. Lamberton holds Illinois license 125078519.
Which hospitals is Dr. Jacob Lamberton affiliated with?
Dr. Lamberton is affiliated with Ascension SE Wisconsin Hospital - St. Joseph. Dmand AI links Dr. Lamberton to 3 more hospitals.
What medical group is Dr. Jacob Lamberton part of?
Dr. Lamberton is linked to Emergency Medicine Specialists, S.C.
Does Dr. Jacob Lamberton accept Medicare?
Yes. CMS data shows Dr. Lamberton billed Medicare for 163 services in 2024, and Dr. Lamberton accepts Medicare assignment.
How many Medicare patients does Dr. Jacob Lamberton see?
CMS counts 114 Medicare patients who saw Dr. Lamberton in 2024, with an average age of 73.
What services does Dr. Jacob Lamberton bill to Medicare?
In 2024, Dr. Lamberton's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Dr. Jacob Lamberton go to medical school?
Dr. Lamberton graduated from Medical College of Wisconsin in 2021.
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What drugs does Dr. Jacob Lamberton prescribe most?
In 2024 Medicare Part D data, Dr. Lamberton's most prescribed drugs by claims were Ondansetron ODT.
Has Dr. Jacob Lamberton received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Lamberton from 1 company from 2023 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Jacob Lamberton been practicing?
Dr. Lamberton graduated from medical school in 2021, 5 years ago.
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