Dr. Michael C Tigar , MD
Pediatrics • Chattanooga, TN
1651 Gunbarrel Rd Ste 302
Chattanooga, TN 374213291
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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NPI assigned on February 15, 2006; this date does not establish years in practice.
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Dexmethylphenidate Hcl Er (Dexmethylphenidate Hcl) — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
1651 Gunbarrel Rd Ste 302
Chattanooga, TN 374213291
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 Chattanooga, TN; Hixson, TN. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Pediatrics: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
12 standardized 30-day fills in 2023
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
$756 in 2023
The total cost of these prescriptions in 2023, 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, 2023.
Open Payments general payments, program year 2025
All general payments: $559.01 across 24 records.
By nature of payment
- Food and Beverage: $559.01 across 24 records.
Reporting-company totals (3 largest of 13)
- Corium, LLC: $169.78 across 7 records.
- Supernus Pharmaceuticals, Inc.: $94.81 across 3 records.
- Sanofi and Genzyme US Companies: $46.77 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).
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.
Enrolled in Medicare (PECOS)
Dr. Tigar 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 Dr. Tigar 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 Chattanooga and Tennessee
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Tigar are from 2023.
71 active clinicians are listed under Pediatrics with a practice address in Chattanooga, TN (1,256 in Tennessee).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chattanooga
0% of these 71 clinicians have the CMS telehealth indicator.
0% of these 71 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 D prescriptions
CMS data for Part D prescriptions are available for 2023 only.
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30-day fills
CMS data for 30-day fills are available for 2023 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2023 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $15.63 in 2022 to $559.01 in 2025.
- 2022: $15.63
- 2023: $336.61
- 2024: $449.64
- 2025: $559.01
Sources: CMS Medicare Part D Prescribers (2023), 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): 24 records totaling $559.01.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $33.72 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $31.46 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
INCEPTIV | General | $30.61 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $29.63 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $28.42 |
| Neurelis, Inc. |
Food and Beverage
In-kind items and services
|
VALTOCO | General | $26.89 |
| Corium, LLC |
Food and Beverage
In-kind items and services
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Azstarys | General | $25.86 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $25.44 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $25.37 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $23.83 |
| Optinose US, Inc. |
Food and Beverage
In-kind items and services
|
Xhance | General | $23.65 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TZIELD | General | $23.62 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $23.15 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Jornay PM | General | $22.73 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $20.80 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
VAXELIS | General | $20.78 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $20.06 |
| Cipher Pharmaceuticals US LLC |
Food and Beverage
Cash or cash equivalent
|
Natroba | General | $19.61 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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PROQUAD | General | $18.52 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $18.38 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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BEXSERO | General | $18.37 |
| Seqirus USA Inc |
Food and Beverage
In-kind items and services
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Fluad | General | $18.02 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
TRUMENBA | General | $15.48 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
TRUMENBA | General | $14.61 |
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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Dexmethylphenidate Hcl Er | Dexmethylphenidate Hcl | 12 | 330 | $756.23 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-04-13NUCC Taxonomy Code: 208000000X
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PEDIATRIC MEDICINE
I20050826000683
TN
5991736159
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
5864 Highway 153 Ste 112
Hixson, TN 373435187
Phone: 4234975359
3354 Charger Dr
Chattanooga, TN 374091265
Phone: 4232656411
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Social Worker - Clinical
Licensed Clinical Social Worker
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1651 GUNBARREL RD STE 302, CHATTANOOGA, TN 374213291 (Tel: 4238992904)
Registered at 4976 ALPHA LN, HIXSON, TN 373435470 (Tel: 4233080280)
NPI status registered as active in NPPES database
Registered at 1651 GUNBARREL RD, GALEN MEDICAL GROUP S 302, CHATT, TN 37421 (Tel: 4238992904)
Registered at PO BOX 1030, GALEN MEDICAL GROUP, CHATT, TN 37401 (Tel: 4233080280)
Recorded as MICHAEL TIGAR, MD
Pediatrics (license number reported to NPPES: TN 34405)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Pediatrics Specialists in Chattanooga
- Dr. Gary Meredith, MD
- Dr. Kathryn Oelsner, MD
- Dr. Josh Smith, MD
- Dr. Arif Shafi, MD
- Dr. Tomasz Voychehovski, MD
Mailing Address
4976 Alpha Ln
Hixson, TN 373435470
Phone: 4233080280