Dr. Blake Pruitt Chatham , DO
Emergency Medicine β’ Norman, OK
3300 Healthplex Pkwy
Norman, OK 730729749
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. Blake Chatham is listed in NPPES under Emergency Medicine.
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NPI assigned on June 8, 2022; this date does not establish years in practice.
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Published CMS data list 41 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ondansetron Odt (Ondansetron) β 26 prescription fills, including refills.
- Cephalexin β 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 75% of clinicians listed under Emergency Medicine in Norman, OK (2024, 47 clinicians with data). Median for this group: 116. Middle half: 47 to 195.
Fewer Part D prescriptions than 80% of clinicians listed under Emergency Medicine in Oklahoma (2024, 521 clinicians with data). Median for this group: 116. Middle half: 54 to 214.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 16 in 2023 to 41 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
3300 Healthplex Pkwy
Norman, OK 730729749
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
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
41 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
$406 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 β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $226.62 across 2 records.
By nature of payment
- Food and Beverage: $226.62 across 2 records.
Reporting-company totals
- Chiesi USA, Inc.: $117.45 across 1 record.
- UCB, Inc.: $109.17 across 1 record.
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
2022
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, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Chatham 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. Chatham 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 Norman and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Emergency Medicine in Norman, OK (2024, 47 clinicians with data). Median for this group: 116. Middle half: 47 to 195.
Fewer Part D prescriptions than 80% of clinicians listed under Emergency Medicine in Oklahoma (2024, 521 clinicians with data). Median for this group: 116. Middle half: 54 to 214.
Part D drug cost
A lower Part D drug cost than 70% of clinicians listed under Emergency Medicine in Norman, OK (2024, 47 clinicians with data). Median for this group: $789. Middle half: $335 to $1,485.
A lower Part D drug cost than 70% of clinicians listed under Emergency Medicine in Oklahoma (2024, 521 clinicians with data). Median for this group: $885. Middle half: $350 to $1,747.
69 active clinicians are listed under Emergency Medicine with a practice address in Norman, OK (763 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Norman
0% of these 69 clinicians have the CMS telehealth indicator.
60.9% of these 69 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
Medicare Part D prescriptions went from 16 in 2023 to 41 in 2024.
- 2023: 16
- 2024: 41
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30-day fills
30-day fills went from 16 in 2023 to 41 in 2024.
- 2023: 16
- 2024: 41
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Part D drug cost
Part D drug cost went from $107 in 2023 to $406 in 2024.
- 2023: $107
- 2024: $406
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $26.21 in 2024 to $226.62 in 2025.
- 2024: $26.21
- 2025: $226.62
Sources: 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 Β· 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 β December 31, 2025): fewer than 11 records totaling $226.62.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Chiesi USA, Inc. |
Food and Beverage
Cash or cash equivalent
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CLEVIPREX | General | $117.45 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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β | General | $109.17 |
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 |
|---|---|---|---|---|---|
| Ondansetron Odt | Ondansetron | 26 | 108 | $241.17 | 26 |
| Cephalexin | Cephalexin | 15 | 126 | $164.67 | 15 |
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: 2026-10-23NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20230815001449
OK
7012379654
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Emergency Medicine - Emergency Medical Services
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3300 HEALTHPLEX PKWY, NORMAN, OK 730729749 (Tel: 4053071000)
Registered at PO BOX 1308, NORMAN, OK 730701308 (Tel: 4053071090)
Emergency Medicine (license number reported to NPPES: OK 8080)
NPI status registered as active in NPPES database
Registered at 901 N PORTER AVE, NORMAN, OK 730716404 (Tel: 4053071000)
Registered at 1621 SW 157TH ST, OKLAHOMA CITY, OK 731707723 (Tel: 8177293901)
Recorded as BLAKE CHATHAM, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Norman
- Dr. Savannah Phillips, DO
- Dr. Hannah Kramer, DO
- Chad Borin
- Dr. Max Cieminski, DO
- Dr. Robert Kramer, DO
- Dr. Ashley Taylor, DO
Mailing Address
Po Box 1308
Norman, OK 730701308
Phone: 4053071090