Physician Profile
Based in San Diego, CA, Sarah Merrill, MD is listed in the NPI registry under family medicine. Sarah graduated from Loyola University of Chicago, Stritch School of Medicine in 2011. According to Medicare claims data, Sarah cared for 333 Medicare patients across 1,215 services. The services billed most often include hyaluronan or derivative, durolane, for intra-articular injection, 1 mg, 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', and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
9909 MIRA MESA BLVD STE 200
San Diego, CA 92131
200 W Arbor Dr # Mc8809
San Diego, CA 92103
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
1,215 services · 333 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
19 | Less often than most peers in Family Medicine |
| Influenza vaccine, inactivated | Treatment | 90653 |
18 | Less often than most peers in Family Medicine |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
12 | Less often than most peers in Family Medicine |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
12 | Less often than most peers in Family Medicine |
| Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg | Drug given | J7318 |
840 | Less often than most peers in Family Medicine |
| 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 |
100 | As often as other peers in Family Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
84 | Less often than most peers in Family Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
63 | More often than most peers in Family Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
19 | Less often than most peers in Family Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
16 | Less often than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Merrill is a family doctor in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Dr. Merrill is listed at 9909 Mira Mesa Blvd Ste 200, San Diego, CA 92131. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (858) 657-7750. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Merrill's National Provider Identifier is 1225399512. 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
Dr. Merrill attended Loyola University of Chicago, Stritch School of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
Dr. Merrill has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Merrill performs procedures including aspiration and/or injection of fluid large joint using ultrasound guidance; provides treatments such as influenza vaccine, inactivated and sarscv2 vac 30mcg trs-suc im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Merrill. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.