1. Home
  2. Directory
  3. California
  4. Palmdale
  5. Internal Medicine
  6. NPI Profile

DR. HOVSEP GHEVONT MAHDESSIAN MD
NPI 1659544203
Internal Medicine in Palmdale, CA

Active since April 03, 2008PECOS EnrolledAccepts Medicare Assignment
83.99/100
CMS Quality Rating
327 E PALMDALE BLVD, PALMDALE, CA 93550(661) 273-5888 Get Directions Write a Review

NPPES record last updated: November 23, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Hovsep Ghevont Mahdessian Md NPPES

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

DR. HOVSEP GHEVONT MAHDESSIAN MD (NPI 1659544203) is an individual internal medicine provider in Palmdale, California, licensed in California (A102305) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2000).

NPPES Registry Identity

NPI1659544203
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. HOVSEP GHEVONT MAHDESSIANCredential: MD
Location Address327 E PALMDALE BLVDPalmdale, CA 93550-7139
Mailing Address327 E Palmdale BlvdPalmdale, CA 93550 · (661) 273-5888
Phone(661) 273-5888
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateApril 3, 2008
Last NPPES UpdateNovember 23, 2011
✔ NPI 1659544203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · A102305✔ Licensed in IL · O36.120147
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.
327 E PALMDALE BLVD, Palmdale, CA 93550
Open in Google Maps ↗

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

Dr. Hovsep Ghevont Mahdessian 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 ID9133279284
PECOS Enrollment IDI20090610000584
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 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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
77 services73 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
58 services42 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
19 services19 patients
Blood test, basic group of blood chemicals (calcium, total) 80048
A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.
18 services18 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
17 services17 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93550 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.99/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.53
Promoting Interoperability91
Improvement Activities40
Cost68.53

Other Providers at the Same Location NPPES 2

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

FREDERICK O GALLOWAY II PA
Physician Assistant
327 E PALMDALE BLVD, SUITE D
PALMDALE, CA 93550
Los Angeles County (661) 283-5888
DR. LUISA MARIA PINEDA M.D.
General Practice
327 E PALMDALE BLVD, SUITE #D
PALMDALE, CA 93550
Los Angeles County (661) 273-5888

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 Hovsep Mahdessian's NPI number?

The NPI number for Hovsep Mahdessian is 1659544203. It was assigned to this individual provider in the NPPES registry on April 3, 2008.

Where is Hovsep Mahdessian located?

Hovsep Mahdessian practices at 327 E Palmdale Blvd, Palmdale, CA 93550. The listed phone number is (661) 273-5888.

What is Hovsep Mahdessian's specialty?

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

Is Hovsep Mahdessian enrolled in Medicare?

Yes. Hovsep Mahdessian 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 Hovsep Mahdessian was last updated on November 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.