Dr. Ryan Michael Mccormack , MD, PhD
Neurological Surgery β’ Houston, TX
915 Gessner Rd Ste 560
Houston, TX 770242572
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Ryan Mccormack is listed in NPPES under Neurological Surgery.
-
NPI assigned on June 20, 2017; this date does not establish years in practice.
-
Published CMS data list 11 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022. Published rows only; this is not a quality measure.
-
Published Part D records, 2022:
- Dexamethasone β 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022. 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
-
Medicare Part D prescriptions went from 25 in 2019 to 11 in 2022.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2019β2022.
Practice Location & Contact Primary Location
915 Gessner Rd Ste 560
Houston, TX 770242572
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Houston, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Mhs Physicians Of Texas. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2018
What Public CMS Data Show
Neurological Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
11 standardized 30-day fills in 2022
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
$141 in 2022
The total cost of these prescriptions in 2022, 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, 2022.
Open Payments general payments, program year 2025
All general payments: $12,885.85 across 102 records.
By nature of payment
- Travel and Lodging: $7,326.68 across 31 records.
- Food and Beverage: $5,559.17 across 71 records.
Reporting-company totals (3 largest of 15)
- Alphatec Spine, Inc: $4,582.28 across 14 records.
- Globus Medical, Inc.: $2,519.30 across 20 records.
- Orthofix Medical, Inc.: $1,463.95 across 14 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
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 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.
NPI first issued
2017
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; Medicare.gov, βDoes your provider accept Medicare as full payment?β
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.
Enrolled in Medicare (PECOS)
Dr. Mccormack 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. Mccormack 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 Houston and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Mccormack are from 2022.
169 active clinicians are listed under Neurological Surgery with a practice address in Houston, TX (669 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Houston
33.1% of these 169 clinicians have the CMS telehealth indicator.
65.1% of these 169 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.
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 56% from 25 in 2019 to 11 in 2022.
- 2019: 25
- 2021: 62
- 2022: 11
-
30-day fills
30-day fills decreased 56% from 25 in 2019 to 11 in 2022.
- 2019: 25
- 2021: 64
- 2022: 11
-
Part D drug cost
Part D drug cost went from $103 in 2019 to $141 in 2022.
- 2019: $103
- 2021: $792
- 2022: $141
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $22.13 in 2023 to $12,885.85 in 2025.
- 2023: $22.13
- 2024: $5,183.71
- 2025: $12,885.85
Sources: CMS Medicare Part D Prescribers (2022), CMS Open Payments (2025), CMS Doctors and Clinicians, 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): 102 records totaling $12,885.85.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Alphatec Spine, Inc |
Travel and Lodging
Cash or cash equivalent
|
Other - Miscellaneous | General | $881.56 |
| Alphatec Spine, Inc |
Travel and Lodging
In-kind items and services
|
Other - Miscellaneous | General | $710.79 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
EXCELSIUS GPS | General | $676.84 |
| Alphatec Spine, Inc |
Travel and Lodging
In-kind items and services
|
Other - Miscellaneous | General | $661.18 |
| Orthofix Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Mariner Deformity | General | $608.97 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
EXCELSIUS GPS | General | $478.89 |
| Alphatec Spine, Inc |
Travel and Lodging
In-kind items and services
|
Other - Miscellaneous | General | $470.67 |
| Alphatec Spine, Inc |
Travel and Lodging
In-kind items and services
|
Other - Miscellaneous | General | $469.96 |
| Alphatec Spine, Inc |
Travel and Lodging
In-kind items and services
|
Other - Miscellaneous | General | $376.00 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
Velys | General | $277.82 |
| Alphatec Spine, Inc |
Food and Beverage
In-kind items and services
|
Other - Miscellaneous | General | $254.83 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
Velys | General | $218.60 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
EXCELSIUS GPS | General | $210.15 |
| Orthofix Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
MISCELLANEOUS | General | $202.31 |
| Carlsmed, Inc. |
Food and Beverage
Cash or cash equivalent
|
aprevo | General | $198.00 |
| VB Spine LLC |
Food and Beverage
In-kind items and services
|
Everest Spinal System | General | $190.25 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
EXCELSIUS GPS | General | $185.00 |
| icotec Medical Inc. |
Travel and Lodging
In-kind items and services
|
VADER PEDICLE SYSTEM 6.0, SCREW, Carbon/PEEK, POLYAX., FEN., O 5.5 X 45 MM | General | $180.84 |
| Alphatec Spine, Inc |
Food and Beverage
In-kind items and services
|
Other - Miscellaneous | General | $179.75 |
| Integra LifeSciences Corporation |
Food and Beverage
In-kind items and services
|
CODMAN CERTAS | General | $172.81 |
| Alphatec Spine, Inc |
Food and Beverage
In-kind items and services
|
Invictus OPEN | General | $167.03 |
| VB Spine LLC |
Food and Beverage
In-kind items and services
|
YUKON OCT SPINAL SYSTEM | General | $164.92 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
N/A | General | $164.43 |
| Alphatec Spine, Inc |
Food and Beverage
In-kind items and services
|
β | General | $163.49 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
EXCELSIUS GPS | General | $162.00 |
(top 25 shown)
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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Dexamethasone | Dexamethasone | 11 | 157 | $141.46 | β |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-04-29NUCC Taxonomy Code: 207T00000X
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEUROSURGERY
I20250502001121
TX
1658897624
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
Mhs Physicians Of Texas
7600 Beechnut St, Houston, TX 770744302
Phone: 7134565686
Mhs Physicians Of Texas
18955 N Memorial Dr, Humble, TX 773384396
Phone: 2813198530
Mhs Physicians Of Texas
915 Gessner Rd, Houston, TX 770242572
Phone: 7139846406
Mhs Physicians Of Texas
1635 N Loop W, Houston, TX 770081532
Phone: 7138672066
Mhs Physicians Of Texas
23900 Katy Fwy, Katy, TX 774941323
Phone: 2816448111
Mhs Physicians Of Texas
921 Gessner Rd, Houston, TX 770242501
Phone: 7132423768
Secondary Practice Locations
6400 Fannin St Ste 2800
Houston, TX 770301534
Phone: 7317047100
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Family Nurse Practitioner (Board Certified)
Nurse Practitioner - Acute Care
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 915 GESSNER RD STE 560, HOUSTON, TX 770242572 (Tel: 7139846406)
Registered at 920 FROSTWOOD DR STE 2.300, HOUSTON, TX 770242314 (Tel: 7133385519)
Neurological Surgery (license number reported to NPPES: TX V6061)
Registered at 6400 FANNIN ST STE 2800, HOUSTON, TX 770301534 (Tel: 7317047100)
Registered at 6400 FANNIN ST STE 2800, HOUSTON, TX 770301534 (Tel: 7317047100)
Recorded as RYAN MCCORMACK, MD, PHD
NPI status registered as active in NPPES database
Registered at 1600 NW 10TH AVE, MIAMI, FL 331361015 (Tel: 3052434681)
Registered at 50 BISCAYNE BLVD APT 4405, MIAMI, FL 331322948 (Tel: 3058072967)
Recorded as RYAN MCCORMACK
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Neurological Surgery Specialists in Houston
- Dr. Fangyi Zhang, MD
- Dr. Yevgeniy Freyvert, MD
- Dr. Aaron Mohanty, MD
- Dr. Linton Evans, MD
- Dr. Andrew Roeser, MD
- Dr. Edward Duckworth, MD
Mailing Address
920 Frostwood Dr Ste 2.300
Houston, TX 770242314
Phone: 7133385519