Dr. John R Barker , MD
Orthopaedic Surgery • Lone Tree, CO
10103 Ridgegate Pkwy
Lone Tree, CO 801245520
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. John Barker is listed in NPPES under Orthopaedic Surgery.
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NPI assigned on August 10, 2005; this date does not establish years in practice.
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Published CMS data list 623 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 115 service units.
- 99214 — Established patient outpatient office visit: 109 service units.
- 99204 — New patient outpatient office visit: 100 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 14 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 327 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Gabapentin — 60 prescription fills, including refills.
- Tramadol Hcl — 56 prescription fills, including refills.
- Oxycodone Hcl — 54 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 10 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Orthopaedic Surgery in Colorado (2024, 234 clinicians with data). Median for this group: 846. Middle half: 249 to 2,082.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 755 in 2020 to 623 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
10103 Ridgegate Pkwy
Lone Tree, CO 801245520
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Healthone Clinic Services-Surgical Specialties Llc. 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
Southern Illinois University School Of Medicine
1995
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
227 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 – by Provider, 2024.
Medicare-allowed amount
About $143,937 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 – by Provider and Service, 2024.
Paid by Medicare
About $112,518 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 – by Provider and Service, 2024.
30-day fills
341 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
$5,017 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $969.41 across 12 records.
By nature of payment
- Food and Beverage: $969.41 across 12 records.
Reporting-company totals (3 largest of 7)
- Highridge Medical LLC: $568.32 across 3 records.
- EBI, LLC: $156.63 across 1 record.
- Stryker Corporation: $82.36 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
31 years (graduated 1995)
CMS Doctors and Clinicians data list 1995 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
2005
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, “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. Barker 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. Barker 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 Lone Tree and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Orthopaedic Surgery in Colorado (2024, 234 clinicians with data). Median for this group: 846. Middle half: 249 to 2,082.
Too few clinicians listed under Orthopaedic Surgery in Lone Tree have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 75% of clinicians listed under Orthopaedic Surgery in Colorado (2024, 234 clinicians with data). Median for this group: $60,567. Middle half: $25,010 to $136,063.
Too few clinicians listed under Orthopaedic Surgery in Lone Tree have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 75% of clinicians listed under Orthopaedic Surgery in Colorado (2024, 234 clinicians with data). Median for this group: $44,311. Middle half: $19,071 to $102,625.
Too few clinicians listed under Orthopaedic Surgery in Lone Tree have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Orthopaedic Surgery in Lone Tree, CO (2024, 16 clinicians with data). Median for this group: 192. Middle half: 94 to 334.
More Part D prescriptions than 80% of clinicians listed under Orthopaedic Surgery in Colorado (2024, 226 clinicians with data). Median for this group: 113. Middle half: 55 to 245.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Orthopaedic Surgery in Lone Tree, CO (2024, 16 clinicians with data). Median for this group: $1,331. Middle half: $475 to $3,031.
A higher Part D drug cost than 90% of clinicians listed under Orthopaedic Surgery in Colorado (2024, 226 clinicians with data). Median for this group: $826. Middle half: $261 to $2,019.
25 active clinicians are listed under Orthopaedic Surgery with a practice address in Lone Tree, CO (471 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lone Tree
8% of these 25 clinicians have the CMS telehealth indicator.
80% of these 25 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 decreased 17% from 755 in 2020 to 623 in 2024.
- 2020: 755
- 2021: 799
- 2022: 670
- 2023: 647
- 2024: 623
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Medicare-allowed amount
Medicare-allowed amount decreased 28% from $201,040 in 2020 to $143,937 in 2024.
- 2020: $201,040
- 2021: $165,359
- 2022: $98,585
- 2023: $147,606
- 2024: $143,937
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Paid by Medicare
Paid by Medicare decreased 29% from $158,423 in 2020 to $112,518 in 2024.
- 2020: $158,423
- 2021: $128,659
- 2022: $74,832
- 2023: $115,835
- 2024: $112,518
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 47% from 620 in 2020 to 327 in 2024.
- 2020: 620
- 2021: 292
- 2022: 179
- 2023: 189
- 2024: 327
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30-day fills
30-day fills decreased 49% from 670 in 2020 to 341 in 2024.
- 2020: 670
- 2021: 304
- 2022: 185
- 2023: 191
- 2024: 341
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Part D drug cost
Part D drug cost decreased 62% from $13,344 in 2020 to $5,017 in 2024.
- 2020: $13,344
- 2021: $6,461
- 2022: $4,306
- 2023: $4,168
- 2024: $5,017
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 75% from $3,872.65 in 2021 to $969.41 in 2025.
- 2021: $3,872.65
- 2022: $9,205.22
- 2023: $1,665.90
- 2024: $2,238.92
- 2025: $969.41
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), 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): 12 records totaling $969.41.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Highridge Medical LLC |
Food and Beverage
In-kind items and services
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MOBI-C PLUG & FIT US | General | $227.10 |
| Highridge Medical LLC |
Food and Beverage
In-kind items and services
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MOBI-C PLUG & FIT US | General | $184.59 |
| Highridge Medical LLC |
Food and Beverage
In-kind items and services
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SpF XL IIb Implantable Spinal Fusion Stimulator | General | $156.63 |
| EBI, LLC |
Food and Beverage
In-kind items and services
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SPF XL IIB IMPLANTABLE SPINAL FUSION STIMULATOR | General | $156.63 |
| Providence Medical Technology, Inc. |
Food and Beverage
In-kind items and services
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— | General | $51.89 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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N/A | General | $44.20 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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N/A | General | $38.16 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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ALLOCATE | General | $31.60 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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Vyrsa V1 | General | $24.62 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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AQUAMANTYS(TM) | General | $20.98 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
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JOURNAVX | General | $18.51 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
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JOURNAVX | General | $14.50 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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115 | 84 | $151.92 | $91.34 |
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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
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109 | 86 | $229.53 | $127.89 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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100 | 100 | $328.11 | $165.94 |
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72100
X-ray of lower and sacral spine, 2-3 views
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62 | 44 | $131.39 | $40.84 |
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22853
Insertion of cage or mesh device to spine bone and disc space during spine fusion
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51 | 27 | $861.33 | $248.67 |
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99442
Telephone medical discussion with physician, 11-20 minutes
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47 | 38 | $163.30 | $91.02 |
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22633
Fusion of spine in lower back with partial removal of spine bone and disc
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25 | 22 | $5794.28 | $1543.36 |
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63052
Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back
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24 | 22 | $886.88 | $249.09 |
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72040
X-ray of upper spine, 2-3 views
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20 | 14 | $127.85 | $40.54 |
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22842
Placement of stabilizing device to back, 3-6 spine bone segments
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17 | 17 | $2375.12 | $734.29 |
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72070
X-ray of middle spine, 2 views
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17 | 13 | $110.06 | $33.67 |
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27279
Fusion of pelvic joint using imaging guidance
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13 | 13 | $2025.69 | $827.10 |
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22830
Exploration of spine fusion
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12 | 12 | $2438.00 | $408.47 |
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63047
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment
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11 | 11 | $3526.00 | $847.68 |
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 |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 60 | 1,904 | $786.68 | 29 |
| Tramadol Hcl | Tramadol Hcl | 56 | 1,282 | $464.84 | 25 |
| Oxycodone Hcl | Oxycodone Hcl | 54 | 1,428 | $1,135.36 | 28 |
| Methocarbamol | Methocarbamol | 33 | 1,050 | $695.44 | 21 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 32 | 748 | $831.36 | 23 |
| Meloxicam | Meloxicam | 24 | 900 | $108.99 | — |
| Methylprednisolone | Methylprednisolone | 22 | 131 | $197.24 | 20 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 21 | 690 | $282.53 | 14 |
| Carisoprodol | Carisoprodol | 14 | 399 | $365.08 | — |
| Tizanidine Hcl | Tizanidine Hcl | 11 | 330 | $149.95 | — |
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
NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20100805000433
CO
0143266718
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
Healthone Clinic Services-Surgical Specialties Llc
10103 Ridgegate Pkwy, Lone Tree, CO 801245525
Phone: 7202828006
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant
Physician Assistant - Surgical
Physician Assistant
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Neurological Surgery
Doctor of Medicine (M.D.)
Physician Assistant - Surgical
PHYSICIANASSISTANT
Orthopaedic Surgery
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 10103 RIDGEGATE PKWY, STE 306, LONE TREE, CO 801245525 (Tel: 3032258120)
NPI status registered as active in NPPES database
Registered at 10103 RIDGEGATE PKWY, LONE TREE, CO 801245520 (Tel: 3032258120)
Registered at 10103 RIDGEGATE PKWY, LONE TREE, CO 801245525 (Tel: 3032258120)
Recorded as JOHN BARKER, M.D.
Orthopaedic Surgery (license number reported to NPPES: CO 38445)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Lone Tree
- Dr. Byron Ellis, MD
- Dr. David Loucks, MD
- Dr. Paul Hautamaa, MD
- Dr. Robin Dunn, MD
- Dr. Andrew Morris, MD
- Dr. Robert Greenhow, MD
More public profiles in Colorado
Directory navigation, in NPI number order.
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- Kathleen Adams, DNP, FNP-C Nurse Practitioner · Denver
- Ernesha Wolf, NP-BC Nurse Practitioner - Family · Colorado Springs
- Abigail Koehler, ACNPC-AG Nurse Practitioner - Acute Care · Denver
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- China Leiggi, PA Physician Assistant · Pueblo
- Anna Wagner, PA-C Physician Assistant · Aurora
- Joshua Jones, DPT Physical Therapist · Thornton
- Jeremy Dean, MD Family Medicine · Denver
- Brandon Whetstone, PA-C Physician Assistant · Englewood
- Sarah Little, PT, DPT Physical Therapist · Fort Collins
- Max Wei, DO Internal Medicine · Lone Tree
Mailing Address
10103 Ridgegate Pkwy, Ste 306
Lone Tree, CO 801245525
Phone: 3032258120