Dien Do , NP
Nurse Practitioner - Gerontology • Mesa, AZ
6553 E Baywood Ave Ste 201
Mesa, AZ 852061754
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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Dien Do is listed in NPPES under Nurse Practitioner - Gerontology.
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NPI assigned on October 7, 2016; this date does not establish years in practice.
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Published CMS data list 1,486 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:
- 99214 — Established patient outpatient office visit: 1,000 service units.
- G3002 — Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan tha: 258 service units.
- 99213 — Established patient outpatient office visit: 125 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 6,678 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-Acetaminophen (Oxycodone Hcl/Acetaminophen) — 1,038 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 999 prescription fills, including refills.
- Oxycodone Hcl — 917 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 34 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 90% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 64 clinicians with data). Median for this group: 293. Middle half: 93 to 774.
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 754 in 2020 to 1,486 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
6553 E Baywood Ave Ste 201
Mesa, AZ 852061754
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 4 distinct group names: Active Vital Care Llc; Innovative Pain And Wellness Plc; Northwest Hbp Medical Services Llc and 1 more. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2015
What Public CMS Data Show
Nurse Practitioner - Gerontology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
397 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 $140,801 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 $103,602 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
7,228 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
$194,526 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: $738.52 across 32 records.
By nature of payment
- Food and Beverage: $738.52 across 32 records.
Reporting-company totals (3 largest of 8)
- Abbott Laboratories: $261.14 across 5 records.
- Salix Pharmaceuticals, a division of Bausch Health US, LLC: $170.94 across 13 records.
- Collegium Pharmaceutical, Inc.: $89.55 across 5 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
11 years (graduated 2015)
CMS Doctors and Clinicians data list 2015 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, CMS release of October 2, 2026.
NPI first issued
2016
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dien Do 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 Dien Do 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 Mesa and Arizona
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 64 clinicians with data). Median for this group: 293. Middle half: 93 to 774.
Too few clinicians listed under Nurse Practitioner - Gerontology in Mesa have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 64 clinicians with data). Median for this group: $25,110. Middle half: $8,002 to $64,594.
Too few clinicians listed under Nurse Practitioner - Gerontology in Mesa have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 64 clinicians with data). Median for this group: $19,202. Middle half: $5,401 to $47,805.
Too few clinicians listed under Nurse Practitioner - Gerontology in Mesa have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Nurse Practitioner - Gerontology in Mesa, AZ (2024, 11 clinicians with data). Median for this group: 934. Middle half: 174 to 1,709.
More Part D prescriptions than 90% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 78 clinicians with data). Median for this group: 728. Middle half: 84 to 1,987.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner - Gerontology in Mesa, AZ (2024, 11 clinicians with data). Median for this group: $51,898. Middle half: $7,735 to $202,487.
A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner - Gerontology in Arizona (2024, 78 clinicians with data). Median for this group: $52,114. Middle half: $2,443 to $207,754.
19 active clinicians are listed under Nurse Practitioner - Gerontology with a practice address in Mesa, AZ (162 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Mesa
21.1% of these 19 clinicians have the CMS telehealth indicator.
78.9% of these 19 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 increased 97% from 754 in 2020 to 1,486 in 2024.
- 2020: 754
- 2021: 633
- 2022: 602
- 2023: 1,151
- 2024: 1,486
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Medicare-allowed amount
Medicare-allowed amount increased 131% from $61,008 in 2020 to $140,801 in 2024.
- 2020: $61,008
- 2021: $71,616
- 2022: $58,384
- 2023: $117,187
- 2024: $140,801
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Paid by Medicare
Paid by Medicare increased 130% from $45,113 in 2020 to $103,602 in 2024.
- 2020: $45,113
- 2021: $53,739
- 2022: $42,720
- 2023: $90,598
- 2024: $103,602
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 97% from 3,396 in 2020 to 6,678 in 2024.
- 2020: 3,396
- 2021: 3,635
- 2022: 3,301
- 2023: 4,426
- 2024: 6,678
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30-day fills
30-day fills increased 103% from 3,558 in 2020 to 7,228 in 2024.
- 2020: 3,558
- 2021: 3,795
- 2022: 3,560
- 2023: 4,789
- 2024: 7,228
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Part D drug cost
Part D drug cost increased 53% from $127,027 in 2020 to $194,526 in 2024.
- 2020: $127,027
- 2021: $121,276
- 2022: $119,763
- 2023: $154,444
- 2024: $194,526
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $377.85 in 2021 to $738.52 in 2025.
- 2021: $377.85
- 2022: $1,069.29
- 2023: $182.44
- 2024: $371.74
- 2025: $738.52
Sources: CMS Medicare Physician & Other Practitioners (2024), 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 · 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): 32 records totaling $738.52.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $150.06 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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OCTRODE | General | $57.71 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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SPECIFY SURESCAN MRI 5-6-5 | General | $36.02 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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KYPHON EXPRESS II KYPHOPAK TRAY | General | $35.43 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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General - Pain Management | General | $24.96 |
| Averitas Pharma Inc. |
Food and Beverage
In-kind items and services
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QUTENZA | General | $24.13 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $23.66 |
| Valinor Pharma, LLC |
Food and Beverage
In-kind items and services
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MOVANTIK | General | $22.28 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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Senza | General | $20.60 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
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XTAMPZA | General | $20.29 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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RELISTOR | General | $20.04 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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RELISTOR | General | $19.92 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
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Belbuca | General | $19.90 |
| Valinor Pharma, LLC |
Food and Beverage
In-kind items and services
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MOVANTIK | General | $19.22 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
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XTAMPZA | General | $18.91 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
PROCLAIM | General | $18.90 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
RELISTOR | General | $18.86 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
RELISTOR | General | $17.92 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Senza | General | $17.77 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
XTAMPZA | General | $16.87 |
| Valinor Pharma, LLC |
Food and Beverage
In-kind items and services
|
MOVANTIK | General | $16.48 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
RELISTOR | General | $14.44 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
RELISTOR | General | $14.00 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
|
RELISTOR | General | $13.90 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
XTAMPZA | General | $13.58 |
(top 25 shown)
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 2018–2023 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, 2019–2024; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
1,000 | 305 | $495.65 | $104.52 |
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G3002
Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan tha
|
258 | 45 | $109.63 | $67.78 |
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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
|
125 | 93 | $431.33 | $74.35 |
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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
|
32 | 29 | $421.16 | $147.32 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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30 | 30 | $515.00 | $139.86 |
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93042
Electrocardiogram (ecg) 1 to 3 leads with review by physician only
|
22 | 21 | $76.00 | $5.45 |
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G3003
Each additional 15 minutes of chronic pain management and treatment by a physician or other qualified health care professional, per calendar month. (list separately in addition to code for g3002. when using g3003, 15 minutes must be met or exceeded.)
|
19 | 19 | $39.28 | $24.74 |
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-Acetaminophen | Oxycodone Hcl/Acetaminophen | 1,038 | 30,265 | $30,804.34 | 184 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 999 | 29,491 | $23,980.34 | 199 |
| Oxycodone Hcl | Oxycodone Hcl | 917 | 27,155 | $16,968.30 | 139 |
| Gabapentin | Gabapentin | 750 | 29,229 | $12,484.31 | 207 |
| Tizanidine Hcl | Tizanidine Hcl | 439 | 15,453 | $3,968.17 | 143 |
| Pregabalin | Pregabalin | 439 | 14,775 | $10,685.77 | 96 |
| Tramadol Hcl | Tramadol Hcl | 437 | 11,959 | $3,866.19 | 113 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 244 | 8,360 | $2,535.66 | 65 |
| Morphine Sulfate Er | Morphine Sulfate | 207 | 6,076 | $8,896.12 | 35 |
| Baclofen | Baclofen | 155 | 5,600 | $1,604.41 | 32 |
| Celecoxib | Celecoxib | 136 | 5,024 | $2,652.90 | 45 |
| Methocarbamol | Methocarbamol | 109 | 3,610 | $1,299.18 | 30 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 105 | 2,875 | $1,945.32 | 26 |
| Morphine Sulfate | Morphine Sulfate | 73 | 2,159 | $1,629.14 | 17 |
| Meloxicam | Meloxicam | 60 | 2,175 | $185.68 | 26 |
| Topiramate | Topiramate | 59 | 1,980 | $455.90 | — |
| Duloxetine Hcl | Duloxetine Hcl | 57 | 2,370 | $1,242.93 | 19 |
| Buprenorphine | Buprenorphine | 51 | 1,428 | $12,230.79 | 14 |
| Diclofenac Sodium | Diclofenac Sodium | 49 | 1,117 | $1,413.03 | 20 |
| Hydromorphone Hcl | Hydromorphone Hcl | 41 | 1,222 | $742.66 | — |
| Oxycontin | Oxycodone Hcl | 38 | 1,128 | $22,586.54 | — |
| Lidocaine | Lidocaine | 36 | 1,340 | $3,581.00 | 16 |
| Xtampza Er | Oxycodone Myristate | 36 | 1,049 | $13,955.29 | — |
| Ibuprofen | Ibuprofen | 34 | 657 | $251.03 | 13 |
| Fentanyl | Fentanyl | 33 | 990 | $2,799.50 | — |
(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
Self-certified to NPPES: 2025-01-28NUCC Taxonomy Code: 363LG0600X
NUCC Taxonomy Code: 364SG0600X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20161104001524
AZ
9830477256
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, CMS release of October 2, 2026
Innovative Pain And Wellness Plc
6553 E Baywood Ave, Mesa, AZ 852061754
Phone: 4804672273
Active Vital Care Llc
1928 E Highland Ave, Phoenix, AZ 850164626
Phone: 8332420100
Pain Institute Of Southern Arizona Pisa Pc
36453 N Gantzel Rd, San Tan Valley, AZ 851407340
Phone: 4806361225
Northwest Hbp Medical Services Llc
1551 E Tangerine Rd, Oro Valley, AZ 857556213
Phone: 5202292657
Northwest Hbp Medical Services Llc
6200 N La Cholla Blvd, Tucson, AZ 857413529
Phone: 5202292657
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 (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Nurse Practitioner (license number reported to NPPES: AZ AP8990)
Registered at 6553 E BAYWOOD AVE STE 201, MESA, AZ 852061754 (Tel: 4804672273)
Registered at 6553 E BAYWOOD AVE STE 201, MESA, AZ 852061754 (Tel: 4804672273)
Clinical Nurse Specialist (license number reported to NPPES: AZ AP8990)
NPI status registered as active in NPPES database
Registered at 250 E DUNLAP AVE, PHOENIX, AZ 850202825 (Tel: 4803316721)
Registered at 111 E DUNLAP AVE STE 1-279, PHOENIX, AZ 850207805
Recorded as DIEN DO, NP
Nurse Practitioner (license number reported to NPPES: AZ 8990)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioner - Gerontology Specialists in Mesa
- Cathryn Griepentrog
- Nancy Fulmore, AGACNP-BC
- Angela Chukwudolue, NP
- Ampili Umayamma, NP
- Adam Zamora, AGNP-C
- Dr. Michelle Hill, DNP, AGNP-C
Mailing Address
6553 E Baywood Ave Ste 201
Mesa, AZ 852061754
Phone: 4804672273