Dr. Ashley Charter Pan , MD
Internal Medicine • Cypress, TX
25282 Northwest Fwy Ste 200
Cypress, TX 774291083
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 April 4, 2011; this date does not establish years in practice.
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Published CMS data list 92 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: 61 service units.
- 99215 — Established patient outpatient office visit: 16 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 15 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 925 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:
- Atorvastatin Calcium — 114 prescription fills, including refills.
- Levothyroxine Sodium — 94 prescription fills, including refills.
- Amlodipine Besylate — 73 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 33 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 95% of clinicians listed under Internal Medicine in Cypress, TX (2024, 32 clinicians with data). Median for this group: 679. Middle half: 411 to 894.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
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 209 in 2020 to 92 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
25282 Northwest Fwy Ste 200
Cypress, TX 774291083
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
80 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 $12,628 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 $7,281 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
2,594 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
$27,105 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $34.89 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
NPI first issued
2011
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; 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. Pan 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. Pan 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 Cypress and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 95% of clinicians listed under Internal Medicine in Cypress, TX (2024, 32 clinicians with data). Median for this group: 679. Middle half: 411 to 894.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Cypress, TX (2024, 32 clinicians with data). Median for this group: $57,941. Middle half: $30,819 to $94,961.
A lower Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.
Paid by Medicare
A lower Medicare payment amount than 95% of clinicians listed under Internal Medicine in Cypress, TX (2024, 32 clinicians with data). Median for this group: $45,001. Middle half: $22,937 to $74,890.
A lower Medicare payment amount than 85% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Cypress, TX (2024, 29 clinicians with data). Median for this group: 2,015. Middle half: 190 to 3,719.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Cypress, TX (2024, 29 clinicians with data). Median for this group: $202,396. Middle half: $10,488 to $298,151.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
39 active clinicians are listed under Internal Medicine with a practice address in Cypress, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Cypress
41% of these 39 clinicians have the CMS telehealth indicator.
76.9% of these 39 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 56% from 209 in 2020 to 92 in 2024.
- 2020: 209
- 2021: 310
- 2022: 437
- 2023: 484
- 2024: 92
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Medicare-allowed amount
Medicare-allowed amount decreased 42% from $21,844 in 2020 to $12,628 in 2024.
- 2020: $21,844
- 2021: $37,748
- 2022: $53,628
- 2023: $59,358
- 2024: $12,628
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Paid by Medicare
Paid by Medicare decreased 50% from $14,434 in 2020 to $7,281 in 2024.
- 2020: $14,434
- 2021: $28,182
- 2022: $41,699
- 2023: $46,306
- 2024: $7,281
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 45% from 637 in 2020 to 925 in 2024.
- 2020: 637
- 2021: 865
- 2022: 1,211
- 2023: 1,629
- 2024: 925
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30-day fills
30-day fills increased 70% from 1,524 in 2020 to 2,594 in 2024.
- 2020: 1,524
- 2021: 2,199
- 2022: 3,273
- 2023: 4,336
- 2024: 2,594
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Part D drug cost
Part D drug cost increased 172% from $9,966 in 2020 to $27,105 in 2024.
- 2020: $9,966
- 2021: $27,245
- 2022: $18,997
- 2023: $57,116
- 2024: $27,105
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $403.54 in 2021 to $34.89 in 2025.
- 2021: $403.54
- 2022: $198.66
- 2023: $350.20
- 2024: $59.79
- 2025: $34.89
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): fewer than 11 records totaling $34.89.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| INTUITIVE SURGICAL, INC. |
Food and Beverage
In-kind items and services
|
Da Vinci Surgical System | General | $34.89 |
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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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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61 | 51 | $236.00 | $128.12 |
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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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16 | 15 | $316.00 | $180.31 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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15 | 15 | $242.00 | $128.49 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 114 | 10,262 | $723.69 | 56 |
| Levothyroxine Sodium | Levothyroxine Sodium | 94 | 8,148 | $768.66 | 41 |
| Amlodipine Besylate | Amlodipine Besylate | 73 | 6,510 | $515.38 | 38 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 59 | 5,310 | $944.39 | 28 |
| Losartan Potassium | Losartan Potassium | 49 | 4,347 | $630.36 | 24 |
| Sertraline Hcl | Sertraline Hcl | 43 | 3,561 | $341.30 | 17 |
| Montelukast Sodium | Montelukast Sodium | 34 | 2,816 | $396.38 | 14 |
| Lisinopril | Lisinopril | 32 | 2,760 | $401.55 | 16 |
| Escitalopram Oxalate | Escitalopram Oxalate | 32 | 2,640 | $392.71 | 13 |
| Metoprolol Succinate | Metoprolol Succinate | 31 | 2,810 | $676.07 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 29 | 2,430 | $382.44 | 13 |
| Omeprazole | Omeprazole | 26 | 2,160 | $316.01 | 13 |
| Metformin Hcl | Metformin Hcl | 21 | 1,830 | $204.75 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 18 | 1,620 | $183.71 | — |
| Pravastatin Sodium | Pravastatin Sodium | 18 | 1,500 | $374.57 | — |
| Simvastatin | Simvastatin | 17 | 1,301 | $262.57 | — |
| Alendronate Sodium | Alendronate Sodium | 17 | 1,428 | $104.41 | — |
| Zolpidem Tartrate | Zolpidem Tartrate | 17 | 510 | $34.52 | — |
| Gabapentin | Gabapentin | 16 | 1,260 | $129.92 | — |
| Famotidine | Famotidine | 16 | 1,350 | $157.94 | — |
| Metformin Hcl Er | Metformin Hcl | 16 | 1,440 | $214.32 | — |
| Azelastine Hcl | Azelastine Hcl | 15 | 1,050 | $203.95 | — |
| Ozempic | Semaglutide | 15 | 546 | $16,837.74 | — |
| Synthroid | Levothyroxine Sodium | 14 | 1,121 | $664.23 | — |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 14 | 1,260 | $295.57 | — |
(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: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20150518000952
TX
0648590588
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 - Family
Family Nurse Practitioner (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 25282 NORTHWEST FWY STE 200, CYPRESS, TX 774291083 (Tel: 2817372165)
Registered at 25282 NORTHWEST FWY STE 200, CYPRESS, TX 774291083 (Tel: 2817372165)
NPI status registered as active in NPPES database
Registered at 10121 EMMETT F LOWRY EXPY, TEXAS CITY, TX 775912286 (Tel: 4099869686)
Registered at 10121 EMMETT F LOWRY EXPY, TEXAS CITY, TX 775912286 (Tel: 4099869686)
Recorded as ASHLEY PAN, M.D.
Internal Medicine (license number reported to NPPES: TX Q3937)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Cypress
- Areeb Bangash
- Dr. Rishika Sharma, MD
- Dr. Sreedhar Gottiparthy, MD
- Dr. Dorothy Serna, MD
- Dr. Sheriffdeen Ilo, DO
- Dr. Bijoy Mukherjee, DO
More public profiles in Texas
Directory navigation, in NPI number order.
- Audrey Straus, NP Nurse Practitioner - Family · Austin
- Sarah Cardwell, FNP-BC Nurse Practitioner - Family · Palestine
- Kennetha Frye, PhD Psychologist - Clinical · Spring
- Justin Sanborn Physician Assistant - Medical · Webster
- Morgan Debs, NP-C Nurse Practitioner - Family · Dallas
- Martha Mourning, NP Nurse Practitioner - Family · Midland
- Melissa Wilkin, FNP Nurse Practitioner - Family · Conroe
- Tina Spruell, FNP-BC Nurse Practitioner - Family · Huntsville
- James Alvis, DDS Dentist - General Practice · New Braunfels
- Audrey Nicholson, PA-C Physician Assistant · Temple
- Krista Toliver, MSN Nurse Practitioner - Family · Dallas
- Nathaniel Wasson, MD Emergency Medicine · Temple
Mailing Address
25282 Northwest Fwy Ste 200
Cypress, TX 774291083
Phone: 2817372165