Dr. Gerald Dean Natzke , DO
General Practice • Flint, MI
2284 S Ballenger Hwy, Suite H
Flint, MI 485034653
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Gerald Natzke is listed in NPPES under General Practice.
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NPI assigned on March 18, 2006; this date does not establish years in practice.
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Published CMS data list 729 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Np Thyroid (Thyroid,pork) — 132 prescription fills, including refills.
- Amlodipine Besylate — 47 prescription fills, including refills.
- Lisinopril — 33 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 31 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among clinicians listed under General Practice in Michigan (2024, 108 clinicians with data). Median for this group: 595. Middle half: 93 to 2,631.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 799 in 2020 to 729 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
2284 S Ballenger Hwy
Suite H
Flint, MI 485034653
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
1,384 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$50,889 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $85.05 across 4 records.
By nature of payment
- Food and Beverage: $85.05 across 4 records.
Reporting-company totals
- Salix Pharmaceuticals, a division of Bausch Health US, LLC: $85.05 across 4 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists Dr. Natzke as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Flint and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under General Practice in Michigan (2024, 108 clinicians with data). Median for this group: 595. Middle half: 93 to 2,631.
Too few clinicians listed under General Practice in Flint have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under General Practice in Michigan (2024, 108 clinicians with data). Median for this group: $21,383. Middle half: $1,014 to $243,259.
Too few clinicians listed under General Practice in Flint have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under General Practice with a practice address in Flint, MI (369 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 799 in 2020 and 729 in 2024.
- 2020: 799
- 2021: 780
- 2022: 722
- 2023: 710
- 2024: 729
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30-day fills
30-day fills decreased 13% from 1,587 in 2020 to 1,384 in 2024.
- 2020: 1,587
- 2021: 1,462
- 2022: 1,428
- 2023: 1,359
- 2024: 1,384
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Part D drug cost
Part D drug cost stayed about the same: $54,992 in 2020 and $50,889 in 2024.
- 2020: $54,992
- 2021: $67,457
- 2022: $68,375
- 2023: $63,587
- 2024: $50,889
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $212.37 in 2021 to $85.05 in 2025.
- 2021: $212.37
- 2022: $280.14
- 2023: $122.86
- 2024: $55.47
- 2025: $85.05
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $85.05.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $22.36 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $22.35 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $20.86 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $19.48 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Np Thyroid | Thyroid,pork | 132 | 9,969 | $15,638.59 | 36 |
| Amlodipine Besylate | Amlodipine Besylate | 47 | 3,140 | $385.58 | 16 |
| Lisinopril | Lisinopril | 33 | 2,310 | $246.03 | 15 |
| Azithromycin | Azithromycin | 28 | 884 | $262.38 | 20 |
| Carvedilol | Carvedilol | 28 | 1,980 | $404.55 | 11 |
| Montelukast Sodium | Montelukast Sodium | 28 | 1,560 | $306.33 | — |
| Metformin Hcl Er | Metformin Hcl | 25 | 1,710 | $223.80 | — |
| Terazosin Hcl | Terazosin Hcl | 23 | 1,890 | $598.88 | — |
| Temazepam | Temazepam | 22 | 660 | $93.38 | — |
| Metoprolol Tartrate | Metoprolol Tartrate | 21 | 1,765 | $125.85 | — |
| Doxycycline Hyclate | Doxycycline Hyclate | 21 | 457 | $160.74 | 12 |
| Levothyroxine Sodium | Levothyroxine Sodium | 21 | 1,290 | $103.37 | — |
| Eliquis | Apixaban | 21 | 1,205 | $21,672.29 | — |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 20 | 1,200 | $213.73 | — |
| Imipramine Hcl | Imipramine Hcl | 20 | 700 | $571.72 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 18 | 840 | $50.81 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 17 | 1,350 | $343.18 | — |
| Ondansetron Odt | Ondansetron | 17 | 190 | $256.34 | — |
| Zaleplon | Zaleplon | 17 | 570 | $133.07 | — |
| Telmisartan | Telmisartan | 17 | 1,410 | $924.91 | — |
| Prednisone | Prednisone | 16 | 132 | $35.24 | — |
| Zolpidem Tartrate | Zolpidem Tartrate | 16 | 480 | $75.85 | — |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 16 | 485 | $178.13 | — |
| Estradiol (Twice Weekly) | Estradiol | 16 | 1,028 | $1,739.35 | — |
| Minocycline Hcl | Minocycline Hcl | 14 | 232 | $196.88 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History
NPI enumerated March 18, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
2284 S Ballenger Hwy, Suite H
Flint, MI 485034653
Phone: 8102335211