Dr. James H Diede , MD
Specialist • Phoenix, AZ
11024 N 28th Dr, Ste:160
Phoenix, AZ 850294377
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 September 26, 2005; this date does not establish years in practice.
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Published CMS data list 962 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:
- J3301 — Injection, triamcinolone acetonide, not otherwise specified, 10 mg: 507 service units.
- 99215 — Established patient outpatient office visit: 209 service units.
- 99443 — Telephone medical discussion with physician: 105 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 7 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,779 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:
- Oxycodone Hcl — 282 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 276 prescription fills, including refills.
- Morphine Sulfate Er (Morphine Sulfate) — 147 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 26 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 Specialist in Phoenix, AZ (2024, 23 clinicians with data). Median for this group: 974. Middle half: 628 to 2,371.
Close to the middle for Medicare Part B services among clinicians listed under Specialist in Arizona (2024, 108 clinicians with data). Median for this group: 1,100. Middle half: 352 to 3,484.
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 1,146 in 2020 to 962 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
11024 N 28th Dr
Ste:160
Phoenix, AZ 850294377
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of Arizona College Of Medicine
1988
What Public CMS Data Show
Specialist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
46 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 $55,803 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 $41,828 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
2,066 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
$74,922 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 2021
All general payments: $103.29 across 3 records.
By nature of payment
- Food and Beverage: $103.29 across 3 records.
Reporting-company totals
- RedHill Biopharma Inc.: $70.50 across 1 record.
- Collegium Pharmaceutical, Inc.: $20.00 across 1 record.
- Eisai Inc.: $12.79 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 2021 (published June 30, 2026).
Years since graduation
38 years (graduated 1988)
CMS Doctors and Clinicians data list 1988 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?”
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. Diede 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. Diede 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 Phoenix and Arizona
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Specialist in Phoenix, AZ (2024, 23 clinicians with data). Median for this group: 974. Middle half: 628 to 2,371.
Close to the middle for clinicians listed under Specialist in Arizona (2024, 108 clinicians with data). Median for this group: 1,100. Middle half: 352 to 3,484.
Medicare-allowed amount
A lower Medicare-allowed amount than 80% of clinicians listed under Specialist in Phoenix, AZ (2024, 23 clinicians with data). Median for this group: $110,082. Middle half: $71,784 to $204,041.
A lower Medicare-allowed amount than 60% of clinicians listed under Specialist in Arizona (2024, 108 clinicians with data). Median for this group: $96,619. Middle half: $35,458 to $211,186.
Paid by Medicare
A lower Medicare payment amount than 80% of clinicians listed under Specialist in Phoenix, AZ (2024, 23 clinicians with data). Median for this group: $85,518. Middle half: $50,579 to $159,548.
A lower Medicare payment amount than 60% of clinicians listed under Specialist in Arizona (2024, 108 clinicians with data). Median for this group: $70,619. Middle half: $27,390 to $159,841.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Specialist in Phoenix, AZ (2024, 25 clinicians with data). Median for this group: 982. Middle half: 289 to 2,701.
More Part D prescriptions than 70% of clinicians listed under Specialist in Arizona (2024, 115 clinicians with data). Median for this group: 360. Middle half: 73 to 1,826.
Part D drug cost
Close to the middle for clinicians listed under Specialist in Phoenix, AZ (2024, 25 clinicians with data). Median for this group: $33,457. Middle half: $6,582 to $470,382.
Close to the middle for clinicians listed under Specialist in Arizona (2024, 115 clinicians with data). Median for this group: $32,742. Middle half: $1,453 to $349,895.
178 active clinicians are listed under Specialist with a practice address in Phoenix, AZ (746 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Phoenix
4.5% of these 178 clinicians have the CMS telehealth indicator.
12.4% of these 178 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 16% from 1,146 in 2020 to 962 in 2024.
- 2020: 1,146
- 2021: 1,177
- 2022: 1,096
- 2023: 1,116
- 2024: 962
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $58,322 in 2020 and $55,803 in 2024.
- 2020: $58,322
- 2021: $74,827
- 2022: $54,594
- 2023: $57,743
- 2024: $55,803
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Paid by Medicare
Paid by Medicare varied from year to year: $43,918 in 2020 and $41,828 in 2024.
- 2020: $43,918
- 2021: $57,546
- 2022: $41,106
- 2023: $43,654
- 2024: $41,828
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 1,795 in 2020 and 1,779 in 2024.
- 2020: 1,795
- 2021: 2,051
- 2022: 1,950
- 2023: 2,079
- 2024: 1,779
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30-day fills
30-day fills stayed about the same: 2,027 in 2020 and 2,066 in 2024.
- 2020: 2,027
- 2021: 2,313
- 2022: 2,202
- 2023: 2,348
- 2024: 2,066
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Part D drug cost
Part D drug cost decreased 16% from $88,997 in 2020 to $74,922 in 2024.
- 2020: $88,997
- 2021: $118,667
- 2022: $75,617
- 2023: $66,010
- 2024: $74,922
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $26.85 in 2019 to $103.29 in 2021.
- 2019: $26.85
- 2020: $33.07
- 2021: $103.29
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), 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 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $103.29.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| RedHill Biopharma Inc. |
Food and Beverage
Cash or cash equivalent
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MOVANTIK | General | $70.50 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
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XTAMPZA | General | $20.00 |
| Eisai Inc. |
Food and Beverage
Cash or cash equivalent
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Dayvigo | General | $12.79 |
Source: CMS Open Payments, program year 2021, 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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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
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507 | 29 | $30.00 | $0.91 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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209 | 41 | $586.00 | $158.42 |
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99443
Telephone medical discussion with physician, 21-30 minutes
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105 | 34 | $210.00 | $118.61 |
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20553
Injection of trigger points, 3 or more muscles
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76 | 25 | $259.00 | $55.21 |
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20610
Aspiration and/or injection of fluid from large joint
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26 | 12 | $92.59 | $62.39 |
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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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21 | 16 | $434.00 | $107.09 |
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62323
Injection of substance into lower spine canal using imaging guidance
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18 | 12 | $1530.00 | $95.03 |
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 |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 282 | 8,189 | $7,401.48 | 31 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 276 | 8,012 | $11,417.07 | 46 |
| Morphine Sulfate Er | Morphine Sulfate | 147 | 4,357 | $5,835.30 | 18 |
| Tramadol Hcl | Tramadol Hcl | 119 | 3,337 | $1,406.57 | 27 |
| Baclofen | Baclofen | 116 | 4,952 | $2,386.99 | 40 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 97 | 2,815 | $4,598.75 | 16 |
| Diclofenac Sodium | Diclofenac Sodium | 97 | 4,003 | $2,158.15 | 28 |
| Methadone Hcl | Methadone Hcl | 95 | 2,640 | $2,821.63 | 15 |
| Gabapentin | Gabapentin | 72 | 3,245 | $956.90 | 21 |
| Trazodone Hcl | Trazodone Hcl | 68 | 3,210 | $335.79 | 18 |
| Pregabalin | Pregabalin | 61 | 2,070 | $1,352.56 | 18 |
| Tizanidine Hcl | Tizanidine Hcl | 55 | 2,200 | $1,253.27 | — |
| Morphine Sulfate | Morphine Sulfate | 46 | 1,380 | $1,764.37 | — |
| Clonazepam | Clonazepam | 35 | 930 | $503.35 | — |
| Celecoxib | Celecoxib | 33 | 1,170 | $773.84 | — |
| Zonisamide | Zonisamide | 28 | 1,709 | $1,211.72 | — |
| Duloxetine Hcl | Duloxetine Hcl | 22 | 1,200 | $697.93 | — |
| Ibuprofen | Ibuprofen | 20 | 735 | $423.71 | — |
| Oxycontin | Oxycodone Hcl | 18 | 520 | $16,170.44 | — |
| Methocarbamol | Methocarbamol | 15 | 510 | $173.03 | — |
| Movantik | Naloxegol Oxalate | 15 | 750 | $10,445.88 | — |
| Ondansetron Odt | Ondansetron | 14 | 325 | $352.16 | — |
| Sumatriptan Succinate | Sumatriptan Succinate | 13 | 397 | $172.43 | — |
| Fluoxetine Hcl | Fluoxetine Hcl | 13 | 870 | $158.50 | — |
| Meloxicam | Meloxicam | 11 | 330 | $22.99 | — |
(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
NUCC Taxonomy Code: 174400000X
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
NUCC Taxonomy Code: 208VP0014X
Interventional Pain Medicine is the discipline of medicine devoted to the diagnosis and treatment of pain and related disorders principally with the application of interventional techniques in managing subacute, chronic, persistent, and intractable pain, independently or in conjunction with other modalities of treatment.
NUCC Taxonomy Code: 207LP2900X
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERVENTIONAL PAIN MANAGEMENT
I20041012000481
AZ
6709845209
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.
Nurse Practitioner - Psychiatric/Mental Health
PMHNPBCNP
Anesthesiology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 11024 N 28TH DR, STE:160, PHOENIX, AZ 850294377 (Tel: 6028633924)
Registered at 11024 N 28TH DR, SUIT 160, PHOENIX, AZ 850294377 (Tel: 6028633924)
Recorded as JAMES DIEDE, M.D.
Anesthesiology (license number reported to NPPES: AZ 18915)
NPI status registered as active in NPPES database
Registered at 11024 N 28TH DR, STE:160, PHOENIX, AZ 850294377 (Tel: 6028633924)
Registered at 11024 N 28TH DR, SUIT 160, PHOENIX, AZ 850294377 (Tel: 6028633924)
Recorded as JAMES DIEDE, M.D.
Specialist (license number reported to NPPES: AZ 18915)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Specialists in Phoenix
- Dr. Marcia Mastrin, MD
- Dr. Jeffrey Nebelsieck, MD
- Dr. Michael Weng, MD
- Dr. Eli Krigsten, MD
- Dr. Chet Monder, MD
- Dr. Paul Bombino, MD
Mailing Address
11024 N 28th Dr, Suit 160
Phoenix, AZ 850294377
Phone: 6028633924