Physician Profile
Unclaimed ProfileAbout GRIGG
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Education & Training
Areas of Expertise
Common questions
What does Dr. Grigg specialise in?
Dr. Grigg is a physician assistant in Chico, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PHYSICIAN ASSISTANT”.
NPI registry
Where is Dr. Grigg located?
Dr. Grigg is listed at 277 COHASSET RD, Chico, CA 95926. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Grigg's phone number?
The number on file is (530) 877-7200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Grigg?
Dr. Grigg's National Provider Identifier is 1407371941. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Grigg go to medical school?
Dr. Grigg attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Grigg have?
Dr. Grigg has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Grigg do most often?
According to Medicare billing data, Dr. Grigg provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Grigg's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grigg. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (530) 877-7200
- Email not available
Practice Locations
277 COHASSET RD
Chico, CA 95926
Procedures Most Often Billed to Medicare
4,289 services · 2,021 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
281 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
110 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
36 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
30 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
189 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
152 |
| Injection, ceftriaxone sodium, per 250 mg | Drug given | J0696 |
74 |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
42 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,161 |
| 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' | Billing code | G2211 |
615 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other physician assistants in Chico 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.