Dr. Christopher J. Robertz, MD
- Medicare services, 2024
- 42
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 2,783
- Hospital affiliations
- 1
- Industry payments
- $95
- Practice address
- 501 Lapeer Ave, Saginaw, MI 48607
- Practice phone
- Call (989) 729-4848
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Great Lakes Bay Health Centers Shiawassee
Saginaw, Michigan
Find Dr. Robertz'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. Christopher J. Robertz is a family medicine physician in Saginaw, Michigan
Dr. Robertz practices at Great Lakes Bay Health Centers Shiawassee in Saginaw, Michigan.
Dr. Robertz's NPI, 1205451648, was assigned on June 11, 2020. Dr. Robertz holds Michigan license 4351046173.
- NPI
- 1205451648NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820411945
- NPI enumeration date
- June 11, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (989) 729-4848
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher J. Robertz practices at Great Lakes Bay Health Centers Shiawassee in Saginaw, Michigan
Dr. Robertz's primary practice is Great Lakes Bay Health Centers Shiawassee, at 501 Lapeer Ave, Saginaw, MI 48607 in Saginaw County. The practice phone is (989) 729-4848.
- Great Lakes Bay Health Centers Shiawassee501 Lapeer Ave, Saginaw, MI 48607 · Saginaw CountyPhone(989) 729-4848
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher J. Robertz is affiliated with 3 sites of care and 1 medical group
Dr. Robertz's primary practice is Great Lakes Bay Health Centers Shiawassee in Saginaw, Michigan. Dr. Robertz is also affiliated with Memorial Healthcare. The medical group on file is Great Lakes Bay Health Centers. Dmand AI also links Dr. Robertz to 1 more group practice or clinic, 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. Christopher J. Robertz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Robertz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Great Lakes Bay Health Centers Shiawassee | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher J. Robertz is one of 4,931 family medicine physicians in Michigan
Family medicine is Dr. Robertz's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Robertz is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Robertz
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. Christopher J. Robertz billed Medicare for 42 services in 2024
CMS data shows 42 Medicare services from Dr. Robertz across 1 procedure code in 2024, for 35 Medicare patients. Medicare paid $400 for them. Every service was in an office.
Dr. Robertz compared with the Michigan median for family medicine physicians, 2024
- Dr. Robertz
- Michigan median
- Medicare services
- 42vs 24883% below
- Medicare patients
- 35vs 11269% below
- Part D claims
- 2,118vs 1,0332.1 times
Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Robertz'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. Robertz and other family medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher J. Robertz treated 35 Medicare patients in 2024, average age 65
CMS counts 35 Medicare patients who saw Dr. Robertz in 2024. The largest group is under 65, with 14 patients. 74% of them have high blood pressure, and 66% have high cholesterol. 49% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Robertz's median patient age at 55, with 54% women.
Dr. Robertz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Robertz's Medicare patients by sex, 2024
- Women1749%
- Men1851%
Chronic conditions among Dr. Robertz's Medicare patients, 2024
- High blood pressure74%
- High cholesterol66%
- Diabetes63%
- Mood disorders43%
- Arthritis40%
- Depression37%
- Ischemic heart disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Robertz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher J. Robertz wrote 2,783 Medicare Part D claims in 2024
In 2024, Dr. Robertz wrote 2,783 Medicare Part D claims for 261 patients. 77% of them were for generic drugs. CMS names the drug for 2,118 of them, across 61 drugs with 11 or more claims each, at $381,727 in total drug cost. In 2023, CMS named 277 claims across 14 drugs.
Dr. Robertz's Part D claims by kind of drug, 2024
- Generic2,133 claims77%
- Brand-name610 claims22%
- Other40 claims1%
Dr. Robertz'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. Robertz's Part D claims, 2024
- Opioids1%34 of 2,783 claims
- Antibiotics2%56 of 2,783 claims
- Antipsychotics, patients 65 and over0%11 of 2,783 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: 2772024: 2,118665%
Drugs named by CMS: 61 in 2024, 14 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. Christopher J. Robertz takes part in Medicare
Dr. Robertz 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. Christopher J. Robertz received $95 in industry payments from 2022 to 2025
CMS Open Payments shows 5 general payments to Dr. Robertz from 4 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $50.
General payments to Dr. Robertz by program year, 2022 to 2025
Companies that paid Dr. Robertz the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christopher J. Robertz'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 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) |
| 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. Christopher J. Robertz
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. Christopher J. Robertz's NPI number?
Dr. Christopher J. Robertz's NPI number is 1205451648. It was assigned on June 11, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher J. Robertz?
Dr. Christopher J. Robertz is a family medicine physician in Saginaw, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Christopher J. Robertz practice?
Dr. Robertz practices at 501 Lapeer Ave, Saginaw, MI 48607. Dr. Robertz's primary practice is Great Lakes Bay Health Centers Shiawassee in Saginaw, Michigan. Dmand AI also links Dr. Robertz to 1 group practice or clinic.
What is Dr. Christopher J. Robertz's office phone number?
The practice phone on file for Dr. Robertz is (989) 729-4848.
What is Dr. Christopher J. Robertz's medical license number?
Dr. Robertz holds Michigan license 4351046173.
Which hospitals is Dr. Christopher J. Robertz affiliated with?
Dr. Robertz is affiliated with Memorial Healthcare.
What medical group is Dr. Christopher J. Robertz part of?
Dr. Robertz is linked to Great Lakes Bay Health Centers.
Does Dr. Christopher J. Robertz accept Medicare?
Yes. CMS data shows Dr. Robertz billed Medicare for 42 services in 2024, and Dr. Robertz accepts Medicare assignment.
How many Medicare patients does Dr. Christopher J. Robertz see?
CMS counts 35 Medicare patients who saw Dr. Robertz in 2024, with an average age of 65.
What services does Dr. Christopher J. Robertz bill to Medicare?
In 2024, Dr. Robertz's most billed Medicare services were lab and pathology test (83036).
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What drugs does Dr. Christopher J. Robertz prescribe most?
In 2024 Medicare Part D data, Dr. Robertz's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Gabapentin.
Has Dr. Christopher J. Robertz received payments from drug or device companies?
CMS Open Payments shows $95 in general payments to Dr. Robertz from 4 companies from 2022 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Christopher J. Robertz been practicing?
Dr. Robertz graduated from medical school in 2019, 7 years ago.
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