Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Martha Evangeline Colunga , PA-C

Physician Assistant • Rialto, CA

Active NPI 1588787055 Individual Practitioner Female Practitioner
Practice location in NPPES

280 N Riverside Ave
Rialto, CA 923765924

Call 9094212121 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

280 N Riverside Ave

Rialto, CA 923765924

Telephone 9094212121
Fax 9094210491

Medicare patients

82 people with Original Medicare in 2019

Different Original Medicare patients in 2019; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2019.

Medicare-allowed amount

About $5,664 in 2019

The total amount Medicare approved for these services in 2019. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

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, 2019.

Paid by Medicare

About $4,176 in 2019

The part of the Medicare-allowed amount that Medicare itself paid in 2019, after patients' deductibles and coinsurance.

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, 2019.

30-day fills

6,055 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

$188,180 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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: $237.82 across 9 records.

By nature of payment

  • Food and Beverage: $137.83 across 8 records.
  • Education: $99.99 across 1 record.

Reporting-company totals (3 largest of 5)

  • Astellas Pharma US Inc: $140.02 across 5 records.
  • Vanda Pharmaceuticals Inc.: $34.37 across 1 record.
  • Eli Lilly and Company: $25.66 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.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

NPI first issued

2007

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?”

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Martha Colunga 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Martha Colunga 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Rialto and California

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Physician Assistant in California (2024, 7,539 clinicians with data). Median for this group: 228. Middle half: 72 to 717.

Too few clinicians listed under Physician Assistant in Rialto have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in California (2024, 7,539 clinicians with data). Median for this group: $3,933. Middle half: $709 to $60,211.

Too few clinicians listed under Physician Assistant in Rialto have Medicare Part D data for 2024 to compare.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Martha Colunga are from 2019.

16 active clinicians are listed under Physician Assistant with a practice address in Rialto, CA (14,754 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Rialto

6.2% of these 16 clinicians have the CMS telehealth indicator.

25% of these 16 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2019), 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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $237.82.

Manufacturer Payment Nature Product Type Amount ($)
Astellas Pharma US Inc
Education
In-kind items and services
— General $99.99
Vanda Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
FANAPT General $34.37
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $25.66
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
TRELEGY ELLIPTA General $21.89
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $15.88
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $10.67
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $10.42
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $9.98
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $8.96

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2019.

CMS Part B · Data Year 2019
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2018 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, 2017–2019; 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
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
56 52 $80.00 $65.64
36415 Insertion of needle into vein for collection of blood sample
29 25 $25.00 $2.94
96372 Injection of drug or substance under skin or into muscle
18 13 $42.78 $14.86
G0444 Annual depression screening, 5 to 15 minutes
14 14 $25.00 $16.06
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
12 12 $150.00 $15.18
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
12 12 $150.00 $102.40

Source: CMS Part B by Provider and Service, 2019; 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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 239 19,677 $3,004.57 134
Amlodipine Besylate Amlodipine Besylate 151 12,764 $875.74 91
Metformin Hcl Metformin Hcl 125 10,089 $1,170.44 67
Gabapentin Gabapentin 110 5,575 $1,079.50 72
Losartan Potassium Losartan Potassium 92 7,860 $1,089.53 49
Lisinopril Lisinopril 89 7,800 $908.43 54
Ibuprofen Ibuprofen 78 2,381 $379.54 53
Glipizide Glipizide 76 5,345 $747.40 34
Azithromycin Azithromycin 75 370 $152.24 69
Hydrochlorothiazide Hydrochlorothiazide 72 5,775 $201.13 42
Levothyroxine Sodium Levothyroxine Sodium 71 5,700 $974.08 41
Omeprazole Omeprazole 66 4,640 $588.67 38
Benazepril Hcl Benazepril Hcl 62 5,103 $922.60 34
Tamsulosin Hcl Tamsulosin Hcl 60 5,135 $988.36 40
Montelukast Sodium Montelukast Sodium 56 3,300 $559.49 25
Alendronate Sodium Alendronate Sodium 53 3,951 $610.75 30
Atenolol Atenolol 48 3,600 $237.75 24
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 47 337 $69.88 43
Diclofenac Sodium Diclofenac Sodium 44 1,847 $4,892.68 29
Triamcinolone Acetonide Triamcinolone Acetonide 43 1,188 $214.99 37
Jardiance Empagliflozin 42 2,375 $43,463.27 22
Donepezil Hcl Donepezil Hcl 33 2,970 $560.75 16
Sertraline Hcl Sertraline Hcl 32 2,880 $388.19 24
Albuterol Sulfate Hfa Albuterol Sulfate 32 1,356 $1,007.28 23
Famotidine Famotidine 31 1,950 $226.92 20

(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

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES CA PA 18185

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Other Identifier Ca Pa-C License Number
PA 18185 (CA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20081201000648

Enrollment State Jurisdiction

CA

PECOS Control ID

3072674696

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

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.

1 listed
Wariam William , PA-C

Physician Assistant

NPI 1396868964

Physician Assistant (Certified)

Career & Practice History

NPI enumerated April 09, 2007.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1588787055
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 09, 2007
Last Update: March 07, 2023
Sole Proprietor: No

Other Physician Assistants in Rialto

All Physician Assistants in Rialto

Mailing Address

280 N Riverside Ave

Rialto, CA 923765924

Phone: 9094212121

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.