Tamara Springberg , PA-C
Physician Assistant โข Grand Rapids, MI
4055 Cascade Rd Se
Grand Rapids, MI 495462149
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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Tamara Springberg is listed in NPPES under Physician Assistant.
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NPI assigned on July 6, 2006; this date does not establish years in practice.
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Published CMS data list 378 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 190 service units.
- 95251 โ Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report: 119 service units.
- 99213 โ Established patient outpatient office visit: 69 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 3,470 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium โ 612 prescription fills, including refills.
- Mounjaro (Tirzepatide) โ 315 prescription fills, including refills.
- Metformin Hcl Er (Metformin Hcl) โ 158 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 50 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: 99. Middle half: 54 to 189.
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: 134. Middle half: 59 to 292.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 413 in 2020 to 378 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
4055 Cascade Rd Se
Grand Rapids, MI 495462149
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Grand Rapids, MI. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Metropolitan Hospital. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2004
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
175 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $27,106 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $20,058 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
8,088 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
$1,600,135 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $969.25 across 12 records.
By nature of payment
- Food and Beverage: $950.40 across 11 records.
- Education: $18.85 across 1 record.
Reporting-company totals (3 largest of 8)
- Medtronic, Inc.: $281.28 across 3 records.
- BETA BIONICS, INC.: $166.93 across 2 records.
- Sequel Med Tech, LLC: $154.81 across 2 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).
Years since graduation
22 years (graduated 2004)
CMS Doctors and Clinicians data list 2004 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Tamara Springberg has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Tamara Springberg 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 Grand Rapids and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: 99. Middle half: 54 to 189.
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: 134. Middle half: 59 to 292.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: $8,307. Middle half: $4,357 to $15,061.
A higher Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: $10,685. Middle half: $4,963 to $20,340.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 502 clinicians with data). Median for this group: $6,056. Middle half: $3,195 to $11,498.
A higher Medicare payment amount than 80% of clinicians listed under Physician Assistant in Michigan (2024, 3,297 clinicians with data). Median for this group: $7,786. Middle half: $3,622 to $14,974.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 458 clinicians with data). Median for this group: 249. Middle half: 78 to 846.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,756 clinicians with data). Median for this group: 301. Middle half: 83 to 1,058.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Grand Rapids, MI (2024, 458 clinicians with data). Median for this group: $6,395. Middle half: $739 to $86,811.
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,756 clinicians with data). Median for this group: $6,017. Middle half: $670 to $116,880.
931 active clinicians are listed under Physician Assistant with a practice address in Grand Rapids, MI (7,169 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Grand Rapids
18.2% of these 931 clinicians have the CMS telehealth indicator.
70.6% of these 931 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services stayed about the same: 413 in 2020 and 378 in 2024.
- 2020: 413
- 2021: 463
- 2022: 423
- 2023: 380
- 2024: 378
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Medicare-allowed amount
Medicare-allowed amount decreased 11% from $30,489 in 2020 to $27,106 in 2024.
- 2020: $30,489
- 2021: $38,403
- 2022: $33,291
- 2023: $29,074
- 2024: $27,106
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Paid by Medicare
Paid by Medicare varied from year to year: $21,277 in 2020 and $20,058 in 2024.
- 2020: $21,277
- 2021: $29,261
- 2022: $23,780
- 2023: $21,726
- 2024: $20,058
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 3,331 in 2020 and 3,470 in 2024.
- 2020: 3,331
- 2021: 4,700
- 2022: 4,832
- 2023: 3,766
- 2024: 3,470
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30-day fills
30-day fills varied from year to year: 8,086 in 2020 and 8,088 in 2024.
- 2020: 8,086
- 2021: 11,812
- 2022: 11,868
- 2023: 9,032
- 2024: 8,088
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Part D drug cost
Part D drug cost increased 14% from $1,404,249 in 2020 to $1,600,135 in 2024.
- 2020: $1,404,249
- 2021: $2,142,578
- 2022: $2,414,221
- 2023: $2,049,267
- 2024: $1,600,135
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $182.26 in 2021 to $969.25 in 2025.
- 2021: $182.26
- 2022: $258.60
- 2023: $261.36
- 2024: $208.04
- 2025: $969.25
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 โ December 31, 2025): 12 records totaling $969.25.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| BETA BIONICS, INC. |
Food and Beverage
In-kind items and services
|
iLet Bionic Pancreas | General | $147.73 |
| Sequel Med Tech, LLC |
Food and Beverage
In-kind items and services
|
TWIIST | General | $145.79 |
| Insulet Corporation |
Food and Beverage
Cash or cash equivalent
|
OMNIPOD | General | $124.99 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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MINIMED 780G | General | $122.41 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $120.82 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $106.78 |
| Eli Lilly and Company |
Food and Beverage
Cash or cash equivalent
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ZEPBOUND | General | $73.62 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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SIGNIA | General | $52.09 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $27.95 |
| BETA BIONICS, INC. |
Food and Beverage
In-kind items and services
|
iLet Bionic Pancreas | General | $19.20 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Education
In-kind items and services
|
JARDIANCE | General | $18.85 |
| Sequel Med Tech, LLC |
Food and Beverage
In-kind items and services
|
TWIIST | General | $9.02 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
190 | 119 | $144.67 | $99.87 |
|
95251
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report
|
119 | 71 | $69.52 | $28.33 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
69 | 64 | $102.90 | $68.98 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
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 |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 612 | 52,332 | $11,617.06 | 238 |
| Mounjaro | Tirzepatide | 315 | 10,616 | $377,447.60 | 91 |
| Metformin Hcl Er | Metformin Hcl | 158 | 12,613 | $2,454.98 | 61 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 147 | 11,037 | $27,583.09 | 62 |
| Toujeo Max Solostar | Insulin Glargine,hum.Rec.Anlog | 133 | 8,630 | $173,683.98 | 49 |
| Humalog Kwikpen U-100 | Insulin Lispro | 130 | 8,602 | $46,356.57 | 60 |
| Jardiance | Empagliflozin | 129 | 8,663 | $161,749.69 | 47 |
| Ozempic | Semaglutide | 119 | 5,792 | $183,744.25 | 44 |
| Trulicity | Dulaglutide | 116 | 5,070 | $165,324.66 | 47 |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 113 | 6,838 | $57,189.07 | 43 |
| Methimazole | Methimazole | 111 | 8,722 | $1,917.15 | 46 |
| Metformin Hcl | Metformin Hcl | 104 | 8,484 | $1,925.17 | 41 |
| Atorvastatin Calcium | Atorvastatin Calcium | 99 | 8,560 | $1,502.40 | 37 |
| Novolog Flexpen | Insulin Aspart | 90 | 5,576 | $32,044.07 | 43 |
| Humalog | Insulin Lispro | 75 | 4,647 | $29,455.92 | 25 |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 70 | 4,682 | $8,074.73 | 36 |
| Ultra-Fine Mini Pen Needle | Pen Needle, Diabetic | 67 | 4,064 | $8,637.35 | 35 |
| Alendronate Sodium | Alendronate Sodium | 55 | 4,302 | $761.00 | 27 |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 53 | 4,094 | $6,744.46 | 25 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 48 | 4,239 | $1,284.41 | 27 |
| Farxiga | Dapagliflozin Propanediol | 46 | 2,799 | $49,061.92 | 12 |
| Glimepiride | Glimepiride | 44 | 3,921 | $977.85 | 21 |
| Gabapentin | Gabapentin | 41 | 2,670 | $945.46 | 13 |
| Testosterone Cypionate | Testosterone Cypionate | 41 | 2,832 | $2,312.05 | 19 |
| Lisinopril | Lisinopril | 39 | 3,291 | $364.32 | 17 |
(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
Self-certified to NPPES: 2020-03-30NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20080818000641
MI
6103852322
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Metropolitan Hospital
4055 Cascade Rd Se, Grand Rapids, MI 495462149
Metropolitan Hospital
5900 Byron Ctr Ave, Wyoming, MI 495199606
Metropolitan Hospital
5900 Byron Ctr Ave Sw, Wyoming, MI 495199606
Metropolitan Hospital
5900 Byron Ctr Swave, Wyoming, MI 495199606
Phone: 6162527200
Secondary Practice Locations
221 Michigan St Ne Ste 200
Grand Rapids, MI 495032533
Phone: 6162678950
221 Michigan St Ne Ste 200
Grand Rapids, MI 49503
Phone: 6162678950
221 Michigan St Ne Ste 200
Grand Rapids, MI 49503
Phone: 6162678950
555 Midtowne St Ne Ste 310
Grand Rapids, MI 495035732
Phone: 6162523630
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Otolaryngology - Facial Plastic Surgery
Doctor of Osteopathic Medicine (D.O.), Master of Public Health
Otolaryngology
Doctor of Osteopathic Medicine (D.O.)
Otolaryngology - Plastic Surgery within the Head & Neck
Doctor of Osteopathic Medicine (D.O.)
Otolaryngology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4055 CASCADE RD SE, GRAND RAPIDS, MI 495462149 (Tel: 6162525760)
Additional practice office at 555 Midtowne St NE Ste 310, Grand Rapids, MI 495035732
Additional practice office at 221 Michigan St NE Ste 200, Grand Rapids, MI 495032533
Additional practice office at 221 Michigan St NE Ste 200, Grand Rapids, MI 49503
Recorded as TAMARA SPRINGBERG, P.A.C.
Registered at 555 MIDTOWNE ST NE STE 310, GRAND RAPIDS, MI 495035732 (Tel: 6162523630)
Registered at 5900 BYRON CENTER AVE SW, MEDICAL ADMINISTRATION, WYOMING, MI 495199606 (Tel: 6162523243)
NPI status registered as active in NPPES database
Registered at 221 MICHIGAN ST NE STE 200, GRAND RAPIDS, MI 495032533 (Tel: 6162678950)
Registered at 100 MICHIGAN ST NE, MC 8445, GRAND RAPIDS, MI 495032560
Recorded as TAMARA MARTIN, P.A.C.
Physician Assistant (license number reported to NPPES: MI 5601005158)
NPI status registered as active in NPPES database
Registered at 1300 MICHIGAN ST NE, SUITE 103, GRAND RAPIDS, MI 495032026 (Tel: 6164598338)
Registered at 100 MICHIGAN ST NE, MC 8445, GRAND RAPIDS, MI 495032560
Recorded as TAMARA MARTIN, P.A.C.
Physician Assistant (license number reported to NPPES: MI 5601005158)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Grand Rapids
- Kenneth Root, PA-C
- Stacey Olivier, PA-C
- Laura Hoving, PA-C
- Holly Gustafson, PA-C
- Holly Crow, PA-C
- Jennifer Knutson, PA
Mailing Address
5900 Byron Center Ave Sw, Medical Administration
Wyoming, MI 495199606
Phone: 6162523243