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DR. ASIM GUHA ROY MD
NPI 1083659528
Internal Medicine in San Diego, CA

Active since June 18, 2006PECOS EnrolledAccepts Medicare Assignment
4540 KEARNY VILLA RD STE 106, SAN DIEGO, CA 92123(619) 417-1500 Get Directions Write a Review

NPPES record last updated: July 11, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Asim Guha Roy Md NPPES

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

DR. ASIM GUHA ROY MD (NPI 1083659528) is an individual internal medicine provider in San Diego, California, licensed in California (AO62010) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1991).

NPPES Registry Identity

NPI1083659528
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ASIM GUHA ROYCredential: MD
Location Address4540 KEARNY VILLA RD STE 106San Diego, CA 92123-1564
Mailing Address8861 Villa La Jolla Dr # 13484La Jolla, CA 92037-1918 · (619) 417-1500
Phone(619) 417-1500
Sole ProprietorYes
Medical School CMSOtherGraduated 1991
Enumeration DateJune 18, 2006
Last NPPES UpdateJuly 11, 2019
✔ NPI 1083659528 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 · AO62010
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.
4540 KEARNY VILLA RD STE 106, San Diego, CA 92123
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Asim Guha Roy Md 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 ID9638196470
PECOS Enrollment IDI20051031000692
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Asim Guha Roy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Asim Guha Roy, M.D., Inc
Same address
Internal Medicine
4540 KEARNY VILLA RD STE 106
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
NPI 1578709515 (584) 306-6568
Careconnectmd Ca PC
73 mi
Family Medicine
3090 BRISTOL ST STE 200
Costa Mesa, CA 92626
  • Reassigned Medicare billing, California enrollment
  • 194 clinicians in this Medicare group
NPI 1366063125 (888) 789-9585

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

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 nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
1,248 services183 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
328 services106 patients
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.
245 services14 patients
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348
An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.
191 services45 patients
Nursing facility discharge day management, 30 minutes or less 99315
Nursing facility discharge day management involves organizing your transition from the nursing facility to your home or another facility. This service, taking 30 minutes or less, includes finalizing medical instructions, arranging follow-up care, and answering any questions.
113 services102 patients
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305
An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.
87 services77 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92123 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 15

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

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
2 suppliers69 claims1,997 services$4.50 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
1 supplier35 claims18,646 services$0.33 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier13 claims6,158 services$0.27 avg. paid by Medicare
Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4154
Other-Enteral and Parenteral · category OB006N
2 suppliers21 claims10,379 services$0.55 avg. paid by Medicare
Enteral nutrition infusion pump, any type B9002
Other-Enteral and Parenteral · category OB005N
2 suppliers18 claims18 services$54.08 avg. paid by Medicare
Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
4 suppliers17 claims17 services$41.69 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 3

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

DECISIVE VISION NURSING, INC
Long Term Care Hospital
4540 KEARNY VILLA RD STE 106
SAN DIEGO, CA 92123
San Diego County (858) 430-6656
SHWETA JAIN
Nurse Practitioner (Family)
4540 KEARNY VILLA RD STE 106
SAN DIEGO, CA 92123
San Diego County (858) 430-6656
ASIM GUHA ROY, M.D., INC
Internal Medicine
4540 KEARNY VILLA RD STE 106
SAN DIEGO, CA 92123
San Diego County (584) 306-6568

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 Asim Guha Roy's NPI number?

The NPI number for Asim Guha Roy is 1083659528. It was assigned to this individual provider in the NPPES registry on June 18, 2006.

Where is Asim Guha Roy located?

Asim Guha Roy practices at 4540 Kearny Villa Rd Ste 106, San Diego, CA 92123. The listed phone number is (619) 417-1500.

What is Asim Guha Roy's specialty?

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

Is Asim Guha Roy enrolled in Medicare?

Yes. Asim Guha Roy 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.

Which organizations bill Medicare for Asim Guha Roy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Asim Guha Roy reassigns Medicare benefits to 2 organizations: Asim Guha Roy, M.D., Inc (San Diego, CA) and Careconnectmd Ca PC (Costa Mesa, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Asim Guha Roy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Asim Guha Roy was last updated on July 11, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.