MICHAEL D HOFTIEZER M.D.
NPI 1639287618
Internal Medicine in Manitowoc, WI
NPI Status: Active since August 29, 2006
Contact Information
1900 WOODLAND DR
MANITOWOC, WI
ZIP 54220
Phone: (920) 320-6212
Fax: (920) 684-5548
- Individual
- Male
- Internal Medicine
- PECOS Enrolled
About MICHAEL HOFTIEZER
This page provides the complete NPI Profile along with additional information for Michael Hoftiezer, an internist established in Manitowoc, Wisconsin with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1639287618 assigned on August 2006. The practitioner's primary taxonomy code is 207R00000X with license number 28153 (WI). The provider is registered as an individual and his NPI record was last updated 14 years ago.
- NPI
- 1639287618
- Provider Name
- MICHAEL D HOFTIEZER M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1900 WOODLAND DR MANITOWOC, WI 54220
- Location Phone
- (920) 320-6212
- Location Fax
- (920) 684-5548
- Mailing Address
- PO BOX 2290 MANITOWOC, WI 54221
- Mailing Phone
- (920) 320-2591
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-29-2006
- Last Update Date
- 01-31-2012
- Code Navigator
An internist like Michael Hoftiezer is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 28153
- License State
- WI
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 390806395002 | OTHER (01) | WI | CHAMPUS |
| 30838500 | MEDICAID (05) | WI | |
| 38235-0002 | MEDICARE ID-TYPE UNSPECIFIED (04) | WI | |
| 110079278 | OTHER (01) | WI | RAILROAD MEDICARE |
| B53651 | OTHER (01) | WI | CIGNA |
| 100003091 | OTHER (01) | WI | WEA |
| 20016 | OTHER (01) | WI | NETWORK HEALTH PLAN |
| 28153 | OTHER (01) | WI | TOUCHPOINT |
| B53651 | MEDICARE UPIN (02) |
Medicare Participation & PECOS Enrollment Status
Michael Hoftiezer is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
1 DME suppliers used 24 Medicare Claims 24 Services Paid
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:K0738)
1 DME suppliers used 23 Medicare Claims 23 Services Paid
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Follow-up hospital inpatient care per day, typically 15 minutes
Follow-up hospital inpatient care per day, typically 25 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Follow-up observation care per day, typically 25 minutes
Hospital discharge day management, 30 minutes or less
Hospital discharge day management, more than 30 minutes
Hospital observation care on day of discharge
Initial hospital inpatient care per day, typically 50 minutes
Initial hospital observation care per day, typically 50 minutes
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
This service was performed 53 times for 19 patientsFollow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
This service was performed 407 times for 131 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 62 times for 24 patientsFollow-up observation care is a daily service where your health progress is monitored for about 25 minutes. It's a routine check to ensure your treatment is effective and to adjust if necessary. It's a crucial part of your healthcare journey.
This service was performed 34 times for 25 patientsHospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
This service was performed 28 times for 26 patientsHospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
This service was performed 85 times for 74 patientsHospital observation care on the day of discharge involves monitoring your health status to ensure stability before you leave. This includes assessing vital signs, response to treatment, and readiness for home care or rehabilitation.
This service was performed 40 times for 40 patientsInitial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
This service was performed 56 times for 53 patientsInitial hospital observation care is a service where healthcare professionals monitor your health for about 50 minutes daily. This helps them understand your condition better, plan treatment, and ensure your safety. It's a routine part of hospital care.
This service was performed 31 times for 31 patientsPhysician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 54220 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $123.69
- Minimum New Patient Price $53.9
- Maximum New Patient Price $163.24
- Average New Patient Copayment $30.92
- Minimum New Patient Copayment $13.47
- Maximum New Patient Copayment $40.81
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $95.41
- Minimum Established Patient Price $17.4
- Maximum Established Patient Price $133.76
- Average Established Patient Copayment $23.85
- Minimum Established Patient Copayment $4.35
- Maximum Established Patient Copayment $33.44
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 6 | 3 | 9 | 2 | 8 | 7 | 6 | 1 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 6 | 9 | 4 | 8 | 14 | 6 | 2 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 6 + 9 + 4 + 8 + 1 + 4 + 6 + 2 + 24 = 72 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 80 - 72 = 8 | 8 | ||||||||
The NPI number 1639287618 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 11 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1831184142 | ANNETTE M KAMINSKY APNP Individual | Nurse Practitioner | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1568448025 | ROBERT R CORNWELL MD Individual | Internal Medicine | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1073621199 | MARY A GOVIER M.D. Individual | Internal Medicine | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1932217924 | JAMES W HOFTIEZER M.D. Individual | Internal Medicine (Gastroenterology) | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1891803862 | PRADEEP GIRIYAPPA M.D. Individual | Internal Medicine | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1407841224 | MICHAEL E HIEBERT MD Individual | Internal Medicine | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1780792887 | WILLIAM ALVAREZ M.D. Individual | Internal Medicine (Gastroenterology) | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1841495058 | DR. JEREMY ROBERT ANCLAM D.O. Individual | Internal Medicine (Gastroenterology) | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1215275409 | ASHLEY ELAINE HOLLY R.D. Individual | Dietitian, Registered | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 323-6890 |
| 1356724686 | ABBEY BUBOLZ RD Individual | Dietitian, Registered | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
| 1790160729 | ASHLEY MICKSCH APNP Individual | Nurse Practitioner | 1900 WOODLAND DR MANITOWOC, WI 54220 (920) 320-6212 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639287618, enumerated in the NPI registry as an "individual" on August 29, 2006
The provider is located at 1900 Woodland Dr Manitowoc, Wi 54220 and the phone number is (920) 320-6212
The provider's speciality is Internal Medicine with taxonomy code 207R00000X
The provider might be accepting Accepts: Tricare, Medicare, Medicaid, Railroad Medicare and. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $123.69 with an average copayment of $30.92 for new patient appointments. Established patients should expect a typical charge of $95.41 and an average copayment of 23.85. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Follow-up hospital inpatient care per day, typically 15 minutes, Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Follow-up observation care per day, typically 25 minutes, Hospital discharge day management, 30 minutes or less, Hospital discharge day management, more than 30 minutes, Hospital observation care on day of discharge, Initial hospital inpatient care per day, typically 50 minutes and Initial hospital observation care per day, typically 50 minutes.
This NPI record was last updated on August 29, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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