Dr. Teresa Jaszczak, MD
- Medicare services, 2016
- 404
- Part D claims, 2017
- 70
- Industry payments
- $50
- Affiliated sites
- 2
- State license
- 1
- Practice address
- 47601 Grand River Ave, Novi, MI 48374
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St John Hospital and Medical Center - Assarian Cancer Center - HOPD
Acute Care Hospital outpatient department · Novi, Michigan
Find Dr. Jaszczak'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. Teresa Jaszczak is an internist in Novi, Michigan
Dr. Jaszczak practices at St John Hospital and Medical Center - Assarian Cancer Center - HOPD in Novi, Michigan.
Dr. Jaszczak's NPI, 1508805490, was assigned on June 6, 2006. Dr. Jaszczak holds Michigan license 4301034870.
- NPI
- 1508805490NPI Registry (opens in a new tab)
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Teresa Jaszczak practices at St John Hospital and Medical Center - Assarian Cancer Center - HOPD in Novi, Michigan
Dr. Jaszczak's primary practice is St John Hospital and Medical Center - Assarian Cancer Center - HOPD, at 47601 Grand River Ave, Novi, MI 48374.
- St John Hospital and Medical Center - Assarian Cancer Center - HOPD47601 Grand River Ave, Novi, MI 48374
Source: Dmand AI Affiliation Data
Dr. Teresa Jaszczak is affiliated with 2 sites of care
Dr. Jaszczak's primary practice is St John Hospital and Medical Center - Assarian Cancer Center - HOPD in Novi, Michigan. Dmand AI also links Dr. Jaszczak to 1 clinical lab, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Teresa Jaszczak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jaszczak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St John Hospital and Medical Center - Assarian Cancer Center - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Teresa Jaszczak is one of 4,804 internists in Michigan
Internal medicine is Dr. Jaszczak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Jaszczak is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Jaszczak
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. Teresa Jaszczak billed Medicare for 404 services in 2016
CMS data shows 404 Medicare services from Dr. Jaszczak across 9 procedure codes in 2016. Medicare paid $12,359 for them. Every service was in an office.
Dr. Jaszczak's Medicare services by type, 2016
- Office and hospital visits199
- Tests and treatments73
- Surgery57
- Drugs given in the office48
- Other services27
Dr. Jaszczak compared with the Michigan median for internists, 2016
- Dr. Jaszczak
- Michigan median
- Medicare services
- 404vs 423Close to median
- Part D claims
- 70vs 31478% below
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Jaszczak's most billed Medicare procedure codes, 2016
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. Jaszczak and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Teresa Jaszczak's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Jaszczak's median patient age at 61, with 75% women.
Dr. Jaszczak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. Teresa Jaszczak wrote 70 Medicare Part D claims in 2017
In 2017, Dr. Jaszczak wrote 70 Medicare Part D claims. Every claim was for a generic drug. They cover 5 drugs, with $747 in total drug cost. In 2016, CMS named 2,314 claims across 65 drugs.
Dr. Jaszczak's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 2,3142017: 7097%
Drugs named by CMS: 5 in 2017, 65 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Teresa Jaszczak received $50 in industry payments from 2016 to 2019
CMS Open Payments shows 3 general payments to Dr. Jaszczak from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Purdue Pharma L.P. paid the most, $22.
General payments to Dr. Jaszczak by program year, 2016 to 2019
Companies that paid Dr. Jaszczak the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Teresa Jaszczak'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Teresa Jaszczak
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. Teresa Jaszczak's NPI number?
Dr. Teresa Jaszczak's NPI number is 1508805490. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Teresa Jaszczak?
Dr. Teresa Jaszczak is an internist in Novi, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Teresa Jaszczak practice?
Dr. Jaszczak practices at 47601 Grand River Ave, Novi, MI 48374. Dr. Jaszczak's primary practice is St John Hospital and Medical Center - Assarian Cancer Center - HOPD in Novi, Michigan. Dmand AI also links Dr. Jaszczak to 1 clinical lab.
What is Dr. Teresa Jaszczak's medical license number?
Dr. Jaszczak holds Michigan license 4301034870.
Does Dr. Teresa Jaszczak accept Medicare?
Yes. CMS data shows Dr. Jaszczak billed Medicare for 404 services in 2016.
What services does Dr. Teresa Jaszczak bill to Medicare?
In 2016, Dr. Jaszczak's most billed Medicare services were office visit, established patient (99213), infusion or chemotherapy administration (96372) and surgery: heart and blood vessels (36415).
What drugs does Dr. Teresa Jaszczak prescribe most?
In 2017 Medicare Part D data, Dr. Jaszczak's most prescribed drugs by claims were Metformin HCl, Potassium Chloride and Levothyroxine Sodium.
Has Dr. Teresa Jaszczak received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Dr. Jaszczak from 3 companies from 2016 to 2019. The largest total came from Purdue Pharma L.P.
How long has Dr. Teresa Jaszczak been practicing?
Dr. Jaszczak's NPI was assigned in 2006.
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