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TAMMY ISSA MD
NPI 1164088068
Internal Medicine in Bakersfield, CA

Active since May 15, 2019PECOS Enrolled
1700 MOUNT VERNON AVE, BAKERSFIELD, CA 93306(661) 326-2200(661) 326-2950 Get Directions Write a Review

NPPES record last updated: July 8, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 8, 2022, May 15, 2019 (2 updates tracked since 2019).

About Tammy Issa Md NPPES

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

TAMMY ISSA MD (NPI 1164088068) is an individual internal medicine provider in Bakersfield, California, licensed in California (A178850) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164088068
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameTAMMY ISSACredential: MD
Location Address1700 MOUNT VERNON AVEBakersfield, CA 93306-4018
Mailing Address43401 Hampton StLancaster, CA 93536 · (661) 317-5676
Phone(661) 326-2200
Fax(661) 326-2950
Sole ProprietorNo
Enumeration DateMay 15, 2019
Last NPPES UpdateJuly 8, 20222 updates tracked since enumeration
NPPES CertifiedJuly 8, 2022
✔ NPI 1164088068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A178850
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1700 MOUNT VERNON AVE, Bakersfield, CA 93306
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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 (PECOS)

Tammy Issa Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Tammy Issa reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kern County Hospital Authority
Same address
General Acute Care Hospital
1700 MOUNT VERNON AVENUE
Bakersfield, CA 93306
  • Reassigned Medicare billing, California enrollment
  • 532 clinicians in this Medicare group
NPI 1376623538 (661) 326-2000
Acute Care Associates Of California PC
158 mi
Internal Medicine
36485 INLAND VALLEY DR
Wildomar, CA 92595
  • Reassigned Medicare billing, California enrollment
  • 69 clinicians in this Medicare group
NPI 1194588392 (951) 677-1111

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 7

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 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.
279 services127 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.
74 services72 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.
55 services29 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.
54 services32 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
33 services33 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93306 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
$135.05 typical visit price
range $59.26 – $178.09
Typical copayment $33.76 (range $14.81 – $44.52)
Most-billed visit code 99204
Established Patient
$104.09 typical visit price
range $19.34 – $145.64
Typical copayment $26.02 (range $4.83 – $36.41)
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.

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.

RYAN ROLESON
Emergency Medicine
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2168
MRS. BRIEANNA COX
Social Worker
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2000
DR. POOJA VISHNU PATEL PHARM.D.
Pharmacist (Pharmacotherapy)
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2362
JUSTIN A WEST PA-C
Physician Assistant
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2000
MR. BRYAN ELROD CRNA
Nurse Anesthetist, Certified Registered
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2000
DR. MOUJIDIN ALADE ADEBAYO MD
Internal Medicine
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2202
KELLY MAE HOOD DO
Obstetrics & Gynecology
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2000
STEPHANIE ZAPATA MD
Psychiatry & Neurology (Psychiatry)
1700 MOUNT VERNON AVE
BAKERSFIELD, CA 93306
Kern County (661) 326-2234

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 Tammy Issa's NPI number?

The NPI number for Tammy Issa is 1164088068. It was assigned to this individual provider in the NPPES registry on May 15, 2019.

Where is Tammy Issa located?

Tammy Issa practices at 1700 Mount Vernon Ave, Bakersfield, CA 93306. The listed phone number is (661) 326-2200.

What is Tammy Issa's specialty?

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

Is Tammy Issa enrolled in Medicare?

Yes. Tammy Issa is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tammy Issa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Issa reassigns Medicare benefits to 2 organizations: Kern County Hospital Authority (Bakersfield, CA) and Acute Care Associates Of California PC (Wildomar, 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 Tammy Issa'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 Tammy Issa was last updated on July 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.