Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Robert Douglas Grigg , PA

Physician Assistant • Chico, CA

Active NPI 1407371941 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

277 Cohasset Rd
Chico, CA 95926

Call 5308777200 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

277 Cohasset Rd

Chico, CA 95926

Telephone 5308777200
Fax 5303277312
Organization at the Same NPPES Address or Phone
Advantage Health And Wellness Inc Facility NPI 1457203234

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in Paradise, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Paradise Medical Group Inc. 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

Graduation Year

2017

Medicare patients

498 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $263,773 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.

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 $201,874 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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, 2024.

30-day fills

16,679 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

$699,885 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: $981.50 across 52 records.

By nature of payment

  • Food and Beverage: $981.50 across 52 records.

Reporting-company totals (3 largest of 16)

  • ABBVIE INC.: $204.07 across 15 records.
  • AstraZeneca Pharmaceuticals LP: $160.27 across 2 records.
  • Amgen Inc.: $144.78 across 11 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.

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

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional 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

2017

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.

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

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Robert Grigg 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 Robert Grigg 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 Chico and California

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Chico, CA (2024, 27 clinicians with data). Median for this group: 443. Middle half: 209 to 2,852.

More Medicare Part B services than 95% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: 198. Middle half: 71 to 535.

Medicare-allowed amount

A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Chico, CA (2024, 27 clinicians with data). Median for this group: $32,333. Middle half: $18,557 to $121,082.

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: $18,173. Middle half: $6,666 to $41,587.

Paid by Medicare

A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Chico, CA (2024, 27 clinicians with data). Median for this group: $25,032. Middle half: $13,674 to $89,456.

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: $13,209. Middle half: $4,792 to $30,879.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Chico, CA (2024, 30 clinicians with data). Median for this group: 605. Middle half: 194 to 1,416.

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: 229. Middle half: 72 to 718.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Chico, CA (2024, 30 clinicians with data). Median for this group: $53,857. Middle half: $2,986 to $450,168.

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: $3,945. Middle half: $709 to $60,209.

47 active clinicians are listed under Physician Assistant with a practice address in Chico, CA (14,458 in California).

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

Telehealth indicator in Chico

19.1% of these 47 clinicians have the CMS telehealth indicator.

70.2% of these 47 clinicians are listed by CMS as accepting Medicare assignment.

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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 52 records totaling $981.50.

Manufacturer Payment Nature Product Type Amount ($)
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $139.08
Dexcom, Inc.
Food and Beverage
In-kind items and services
Dexcom G6 Transmitter General $30.93
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $29.19
Dexcom, Inc.
Food and Beverage
In-kind items and services
Dexcom G6 Transmitter General $28.85
Dexcom, Inc.
Food and Beverage
In-kind items and services
Dexcom G6 Transmitter General $27.34
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
TRELEGY ELLIPTA General $26.62
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $25.65
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $22.54
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
TRELEGY ELLIPTA General $22.09
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $21.65
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
— General $21.19
ABBVIE INC.
Food and Beverage
In-kind items and services
CREON General $20.29
ABBVIE INC.
Food and Beverage
In-kind items and services
CREON General $19.93
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $19.66
Bausch & Lomb Americas Inc.
Food and Beverage
In-kind items and services
INFUSE General $19.48
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $19.35
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $19.24
Sanofi Pasteur Inc.
Food and Beverage
In-kind items and services
FLUZONE HIGH-DOSE General $19.24
Merck Sharp & Dohme LLC
Food and Beverage
In-kind items and services
CAPVAXIVE General $18.62
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Food and Beverage
In-kind items and services
XIFAXAN General $18.56
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $18.48
Viatris Specialty LLC
Food and Beverage
In-kind items and services
YUPELRI General $18.35
ABBVIE INC.
Food and Beverage
In-kind items and services
LINZESS General $18.28
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $18.20
Exact Sciences Corporation
Food and Beverage
In-kind items and services
The Cologuard Plus Collection Kit General $18.13

(top 25 shown)

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

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
1,161 425 $170.00 $113.20
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
615 313 $18.00 $14.19
99442 Telephone medical discussion with physician, 11-20 minutes
318 185 $94.00 $80.20
96372 Injection of drug or substance under skin or into muscle
281 85 $32.00 $12.84
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
209 52 $60.00 $43.64
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
189 42 $69.00 $43.94
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
189 30 $17.00 $0.97
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
174 102 $120.00 $80.38
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
152 54 $11.00 $1.21
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
131 33 $34.00 $21.24
G0008 Administration of influenza virus vaccine
114 112 $41.24 $32.88
90662 Influenza vaccine split virus, preservative free
110 110 $83.49 $81.82
83036 Hemoglobin a1c level
74 64 $25.00 $9.52
J0696 Injection, ceftriaxone sodium, per 250 mg
74 16 $23.00 $0.46
G0447 Face-to-face behavioral counseling for obesity, 15 minutes
69 38 $47.50 $22.24
99443 Telephone medical discussion with physician, 21-30 minutes
68 51 $137.00 $111.79
81002 Urinalysis, manual test
53 40 $10.00 $3.41
99497 Advance care planning, first 30 minutes
43 43 $125.00 $71.57
G0442 Annual alcohol misuse screening, 5 to 15 minutes
42 42 $34.25 $17.17
J1885 Injection, ketorolac tromethamine, per 15 mg
42 14 $11.00 $0.69
99496 Transitional care management services for problem of high complexity
39 32 $319.00 $249.20
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
38 38 $149.00 $115.30
G0444 Annual depression screening, 5 to 15 minutes
38 38 $34.25 $17.17
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
36 32 $66.00 $12.69
90480 Admn sarscov2 vacc 1 dose
30 30 $40.00 $39.20

(top 25 shown)

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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 421 11,479 $9,412.84 51
Levothyroxine Sodium Levothyroxine Sodium 339 29,539 $4,199.56 98
Atorvastatin Calcium Atorvastatin Calcium 335 29,578 $3,239.72 107
Amlodipine Besylate Amlodipine Besylate 241 20,828 $1,456.99 75
Losartan Potassium Losartan Potassium 227 19,913 $1,893.35 66
Gabapentin Gabapentin 202 12,828 $2,851.89 60
Omeprazole Omeprazole 196 16,202 $2,051.64 69
Lisinopril Lisinopril 191 16,073 $1,707.99 59
Metformin Hcl Metformin Hcl 150 13,292 $1,061.63 44
Tamsulosin Hcl Tamsulosin Hcl 149 12,570 $3,058.26 50
Trazodone Hcl Trazodone Hcl 133 10,830 $981.73 38
Montelukast Sodium Montelukast Sodium 130 10,980 $1,237.85 47
Pantoprazole Sodium Pantoprazole Sodium 130 11,089 $2,069.42 39
Metoprolol Succinate Metoprolol Succinate 129 10,688 $2,059.75 41
Albuterol Sulfate Hfa Albuterol Sulfate 119 3,471 $2,996.14 60
Rosuvastatin Calcium Rosuvastatin Calcium 116 10,085 $1,664.01 34
Hydrochlorothiazide Hydrochlorothiazide 107 9,197 $377.87 36
Furosemide Furosemide 105 6,673 $746.97 32
Simvastatin Simvastatin 101 9,030 $611.57 30
Azithromycin Azithromycin 83 421 $324.62 79
Alprazolam Alprazolam 81 2,338 $342.22 16
Famotidine Famotidine 81 6,843 $939.70 30
Ezetimibe Ezetimibe 79 6,960 $2,877.83 25
Ozempic Semaglutide 78 3,004 $83,231.17 18
Prednisone Prednisone 75 875 $170.43 62

(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: 2020-03-16
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES CA 55070

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.

Physician Assistant

NUCC Taxonomy Code: 363A00000X

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

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

I20171130003378

Enrollment State Jurisdiction

CA

PECOS Control ID

2163789058

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.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Paradise Medical Group Inc

6460 Pentz Rd, Paradise, CA 959693673

Phone: 53087266502029

Paradise Medical Group Inc

6470 Pentz Rd, Paradise, CA 959693674

Phone: 53087266502029

Secondary Practice Locations

6225 Forest Ln

Paradise, CA 959693512

Phone: 5303274198

6225 Forest Ln

Paradise, CA 959693512

Phone: 5303274198

5125 Skyway

Paradise, CA 959695624

Phone: 5308722000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

6 listed
NPI 1023049624

Doctor of Medicine (M.D.)

Dr. Amy Darwin , MD

Family Medicine

NPI 1407827660

Doctor of Medicine (M.D.)

Delaney Faggard

Physician Assistant

NPI 1225895774
Kenneth Gillen , PA-C

Physician Assistant - Medical

NPI 1225098494

Physician Assistant (Certified)

Dr. Richard Thorp , MD

Internal Medicine

NPI 1730122029

Doctor of Medicine (M.D.)

Zachary Waschevski , PA-C

Physician Assistant

NPI 1679199004

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
📍
Updated Practice Location September 26, 2019

Registered at 277 COHASSET RD, CHICO, CA 95926 (Tel: 5308777200)

📍
Updated Business Mailing Address September 26, 2019

Registered at 277 COHASSET RD, CHICO, CA 959262242 (Tel: 5308777200)

âś…
NPI Profile Active August 05, 2017

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) August 05, 2017

Registered at 6225 FOREST LN, PARADISE, CA 959693512 (Tel: 5303274198)

📍
Business Mailing Address (Initial Record) August 05, 2017

Registered at 6225 FOREST LN, PARADISE, CA 959693512 (Tel: 5303274198)

👤
Provider Name / Credentials (Initial Record) August 05, 2017

Recorded as ROBERT GRIGG, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 05, 2017

Physician Assistant

🟢
Initial NPI Registration & Enumeration August 05, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1407371941
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 05, 2017
Last Update: March 16, 2020
Sole Proprietor: No

Other Physician Assistants in Chico

All Physician Assistants in Chico

Mailing Address

277 Cohasset Rd

Chico, CA 959262242

Phone: 5308777200

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.