GREG LEWIS M.D.
NPI 1063447811
Internal Medicine in La Jolla, CA

Active since July 11, 2006PECOS EnrolledAccepts Medicare Assignment
9850 GENESEE AVE, SUITE 900, LA JOLLA, CA 92037(858) 626-7780 Get Directions Write a Review

NPPES record last updated: October 20, 2011. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Greg Lewis M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREG LEWIS M.D. (NPI 1063447811) is an individual internal medicine provider in La Jolla, California, licensed in California (G75591) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Miami, Lm Miller School Of Medicine (1991).

NPPES Registry Identity

NPI1063447811
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGREG LEWISCredential: M.D.
Location Address9850 GENESEE AVE, SUITE 900La Jolla, CA 92037-1224
Mailing Address9850 Genesee Ave, Suite 900La Jolla, CA 92037-1224 · (858) 626-7780
Sole ProprietorYes
Medical School CMSUniversity Of Miami, Lm Miller School Of MedicineGraduated 1991
Enumeration DateJuly 11, 2006
Last NPPES UpdateOctober 20, 2011
NPI 1063447811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · G75591
Definition

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.

9850 GENESEE AVE, La Jolla, CA 92037

Other Identifiers 2

Medicare UPINF85220CA
Medicare PIN11BDVZTCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Greg Lewis M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608801378
PECOS Enrollment IDI20100312000525
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
389 services174 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
142 services81 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
125 services122 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
27 services13 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier11 claims11 services$783.99 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Marriage & Family Therapist
9850 GENESEE AVE, SUITE 970
LA JOLLA, CA 92037
Internal Medicine
9850 GENESEE AVE, SUITE 355
LA JOLLA, CA 92037
Plastic Surgery
9850 GENESEE AVE, SUITE 330
LA JOLLA, CA 92037
Clinical Exercise Physiologist
9850 GENESEE AVE, SUITE 730
LA JOLLA, CA 92037
Nurse Practitioner (Family)
9850 GENESEE AVE
LA JOLLA, CA 92037
Internal Medicine
9850 GENESEE AVE, STE 570
LA JOLLA, CA 92037
Internal Medicine
9850 GENESEE AVE, SUITE 355
LA JOLLA, CA 92037
Otolaryngology
9850 GENESEE AVE, STE 710
LA JOLLA, CA 92037

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Greg Lewis's NPI number?

The NPI number for Greg Lewis is 1063447811. It was assigned to this individual provider in the NPPES registry on July 11, 2006.

Where is Greg Lewis located?

Greg Lewis practices at 9850 Genesee Ave Suite 900, La Jolla, CA 92037. The listed phone number is (858) 626-7780.

What is Greg Lewis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Greg Lewis enrolled in Medicare?

Yes. Greg Lewis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Greg Lewis was last updated on October 20, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.