Spencer J. Klein
- Part D claims, 2024
- 28
- Hospital affiliations
- 1
- Industry payments
- $3,382
- Medical group
- 1
- State license
- 1
- Practice address
- 2253 West Mason St, Green Bay, WI 54303
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aurora Baycare Health Center - HOPD
Acute Care Hospital outpatient department · Green Bay, Wisconsin
Find Spencer Klein'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.
Spencer J. Klein is a plastic and reconstructive surgery physician in Green Bay, Wisconsin
Spencer Klein practices at Aurora Baycare Health Center - HOPD in Green Bay, Wisconsin.
Spencer Klein's NPI, 1346701273, was assigned on March 25, 2019. Spencer Klein graduated from University of Wisconsin School of Medicine in 2019. Spencer Klein holds Wisconsin license 74539.
- NPI
- 1346701273NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779919774
- NPI enumeration date
- March 25, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Spencer J. Klein practices at Aurora Baycare Health Center - HOPD in Green Bay, Wisconsin
Spencer Klein's primary practice is Aurora Baycare Health Center - HOPD, at 2253 West Mason St, Green Bay, WI 54303.
- Aurora Baycare Health Center - HOPD2253 West Mason St, Green Bay, WI 54303
Source: Dmand AI Affiliation Data
Spencer J. Klein is affiliated with 4 sites of care and 1 medical group
Spencer Klein's primary practice is Aurora Baycare Health Center - HOPD in Green Bay, Wisconsin. Spencer Klein is also affiliated with Aurora BayCare Medical Center. The medical group on file is BayCare Clinic. Dmand AI also links Spencer Klein to 1 more clinical lab and 1 group practice or clinic, each named with a free account. Spencer Klein's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Spencer J. Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Spencer Klein practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora Baycare Health Center - HOPD | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Spencer J. Klein is one of 40 plastics and reconstructive surgery physicians in Wisconsin
Plastic and reconstructive surgery is Spencer Klein's primary specialty in the NPI Registry, under taxonomy code 2086S0122X. Spencer Klein is licensed in Wisconsin.
Specialties and state licenses
- Plastic and reconstructive surgery, WisconsinPrimary
Plastics and reconstructive surgery physicians near Spencer Klein
Counts of plastics and reconstructive surgery 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
Spencer J. Klein's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Spencer Klein's median patient age at 60, with 65% women.
Spencer Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women65%
- Men34%
Source: Dmand AI Patient Panel Data
Spencer J. Klein wrote 28 Medicare Part D claims in 2024
In 2024, Spencer Klein wrote 28 Medicare Part D claims for 16 patients. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $42 in total drug cost.
Spencer Klein'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 Spencer Klein's Part D claims, 2024
- Opioids50%14 of 28 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Spencer J. Klein ranks in the 70th percentile for melanoma (skin cancer) excision in Medicare
Spencer Klein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of melanoma (skin cancer) excision by Spencer Klein, more than 70% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Spencer Klein ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 70th percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Mastectomy: 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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Spencer J. Klein received $3,382 in industry payments in 2025
CMS Open Payments shows 17 general payments to Spencer Klein from 4 drug and device companies in 2025. Travel and lodging make up the largest share, 76% of the total. AxoGen paid the most, $1,666.
General payments to Spencer Klein by kind, 2025 to 2025
- Travel and lodging$2,57776%
- Food and beverage$80524%
Companies that paid Spencer Klein the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Spencer J. Klein graduated from University of Wisconsin School of Medicine
Spencer Klein graduated from University of Wisconsin School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Spencer J. Klein'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 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)Doctors and Clinicians Utilization Data (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 Spencer J. Klein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Spencer J. Klein's NPI number?
Spencer J. Klein's NPI number is 1346701273. It was assigned on March 25, 2019, and it is active in the NPI Registry.
What does Spencer J. Klein specialize in?
Spencer J. Klein is a plastic and reconstructive surgery physician in Green Bay, Wisconsin. The primary specialty in the NPI Registry is Plastic and Reconstructive Surgery Physician (taxonomy code 2086S0122X).
Where does Spencer J. Klein practice?
Spencer Klein practices at 2253 West Mason St, Green Bay, WI 54303. Spencer Klein's primary practice is Aurora Baycare Health Center - HOPD in Green Bay, Wisconsin. Dmand AI also links Spencer Klein to 1 clinical lab and 1 group practice or clinic.
What is Spencer J. Klein's medical license number?
Spencer Klein holds Wisconsin license 74539.
Which hospitals is Spencer J. Klein affiliated with?
Spencer Klein is affiliated with Aurora BayCare Medical Center.
What medical group is Spencer J. Klein part of?
Spencer Klein is linked to BayCare Clinic.
Does Spencer J. Klein accept Medicare?
Yes. CMS lists Spencer Klein as accepting Medicare assignment.
Where did Spencer J. Klein go to medical school?
Spencer Klein graduated from University of Wisconsin School of Medicine in 2019.
What drugs does Spencer J. Klein prescribe most?
In 2024 Medicare Part D data, Spencer Klein's most prescribed drugs by claims were Oxycodone HCl.
Has Spencer J. Klein received payments from drug or device companies?
CMS Open Payments shows $3,382 in general payments to Spencer Klein from 4 companies from 2025 to 2025. The largest total came from AxoGen.
How long has Spencer J. Klein been practicing?
Spencer Klein graduated from medical school in 2019, 7 years ago.
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