JEFFREY STEVEN ALEXANDER MD
NPI 1659479178
Internal Medicine in Towson, MD

NPI Status: Active since September 20, 2006

Contact Information

120 SISTER PIERRE DR
SUITE 101
TOWSON, MD
ZIP 21204
Phone: (443) 901-0301
Fax: (443) 901-0305

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  • Individual
  • Male
  • Internal Medicine
  • PECOS Enrolled
  • Opted-Out Medicare
  • CLIA Number: 21D1044489
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-21-2027

About JEFFREY ALEXANDER

This page provides the complete NPI Profile along with additional information for Jeffrey Alexander, an internist established in Towson, Maryland with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1659479178 assigned on September 2006. The practitioner's primary taxonomy code is 207R00000X with license number 044560 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1659479178
Provider Name
JEFFREY STEVEN ALEXANDER MD
Gender
Male
Entity Type
Individual
Location Address
120 SISTER PIERRE DR SUITE 101 TOWSON, MD 21204
Location Phone
(443) 901-0301
Location Fax
(443) 901-0305
Mailing Address
2702 PEMBERTON RIDGE BALDWIN, MD 21013
Mailing Phone
(410) 557-8873
Mailing Fax
(443) 901-0305
Is Sole Proprietor?
Yes
Enumeration Date
09-20-2006
Last Update Date
11-27-2007
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An internist like Jeffrey Alexander is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Jeffrey Alexander opted out of Medicare effective on 12-30-2014 until 12-30-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
044560
License State
MD
Taxonomy Description
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
664M175FMEDICARE PIN (08) 
160751100MEDICAID (05)MD 
F91116MEDICARE UPIN (02) 

Medicare Participation & PECOS Enrollment Status

Jeffrey Alexander is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 12-30-2014

  • Opt-Out End Date: 12-30-2026

  • Eligible to Order and Refer? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    8 DME suppliers used 22 Medicare Claims 38 Services Paid

  • DME-Other DME (DE001N)

    Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)

    6 DME suppliers used 12 Medicare Claims 12 Services Paid

  • DME-Other DME (DE001N)

    Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)

    4 DME suppliers used 11 Medicare Claims 64 Services Paid

  • DME-Other DME (DE001N)

    Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)

    4 DME suppliers used 12 Medicare Claims 12 Services Paid

  • DME-Other DME (DE001N)

    Filter, disposable, used with positive airway pressure device (HCPCS:A7038)

    5 DME suppliers used 20 Medicare Claims 118 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    3 DME suppliers used 13 Medicare Claims 13 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    1 DME suppliers used 11 Medicare Claims 11 Services Paid

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 21204 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $139.05
  • Minimum New Patient Price $60.73
  • Maximum New Patient Price $183.44
  • Average New Patient Copayment $34.76
  • Minimum New Patient Copayment $15.18
  • Maximum New Patient Copayment $45.86

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $106.59
  • Minimum Established Patient Price $19.6
  • Maximum Established Patient Price $149.17
  • Average Established Patient Copayment $26.64
  • Minimum Established Patient Copayment $4.9
  • Maximum Established Patient Copayment $37.29

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
21D1044489
Facility Type
Physician Office
Certificate Effective Date
August 22, 2025
Certificate Expiration Date
August 21, 2027
Laboratory Director
JEFFREY S. ALEXANDER
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Jeffrey Alexander to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1659479178, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 4 → 8 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 1 + 0 + 9 + 8 + 7 + 1 + 8 + 1 + 1 + 4 + 24 = 72

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1659479178.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Allergy & Immunology (Allergy)
120 SISTER PIERRE DR, STE 201
TOWSON, MD 21204
Internal Medicine (Pulmonary Disease)
120 SISTER PIERRE DR, STE 505
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Internal Medicine
120 SISTER PIERRE DR, SUITE 105
TOWSON, MD 21204
Obstetrics & Gynecology (Gynecology)
120 SISTER PIERRE DR, SUITE 303
TOWSON, MD 21204
Obstetrics & Gynecology
120 SISTER PIERRE DR, SUITE 303
TOWSON, MD 21204
Counselor (Professional)
120 SISTER PIERRE DR, SUITE 403
TOWSON, MD 21204
Internal Medicine
120 SISTER PIERRE DR, SUITE # 206
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Psychiatry & Neurology (Psychiatry)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204
Otolaryngology
120 SISTER PIERRE DR, SUITE 202
TOWSON, MD 21204
Internal Medicine
120 SISTER PIERRE DR
TOWSON, MD 21204
Obstetrics & Gynecology (Obstetrics)
120 SISTER PIERRE DR, SUITE # 504
TOWSON, MD 21204
Clinical Neuropsychologist
120 SISTER PIERRE DR, SUITE 501
TOWSON, MD 21204
Pediatrics
120 SISTER PIERRE DR, SUITE 305
TOWSON, MD 21204
Social Worker (Clinical)
120 SISTER PIERRE DR, SUITE 407
TOWSON, MD 21204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659479178, enumerated as an "individual" on September 20, 2006.

The provider is located at 120 SISTER PIERRE DR SUITE 101 TOWSON, MD 21204 and the phone number is (443) 901-0301.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.