MARY J. EWERT D.M.H.
NPI 1508903618
Psychologist in San Francisco, CA

NPI Status: Active since January 30, 2007

Contact Information

2186 GEARY BLVD
SUITE 211
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 922-7646

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  • Individual
  • Female
  • Psychologist
  • PECOS Enrolled
  • Opted-Out Medicare

About MARY EWERT

This page provides the complete NPI Profile along with additional information for Mary Ewert, a provider established in San Francisco, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1508903618 assigned on January 2007. The practitioner's primary taxonomy code is 103T00000X with license number PSY11635 (CA). The provider is registered as an individual and her NPI record was last updated 18 years ago.

NPI
1508903618
Provider Name
MARY J. EWERT D.M.H.
Gender
Female
Entity Type
Individual
Location Address
2186 GEARY BLVD SUITE 211 SAN FRANCISCO, CA 94115
Location Phone
(415) 922-7646
Mailing Address
2186 GEARY BLVD SUITE 211 SAN FRANCISCO, CA 94115
Is Sole Proprietor?
Yes
Enumeration Date
01-30-2007
Last Update Date
07-08-2007
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A psychologist like Mary Ewert studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.

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. Mary Ewert opted out of Medicare effective on 10-01-2017 until 10-01-2025. 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

Psychologist

Taxonomy Code
103T00000X
Type
Behavioral Health & Social Service Providers
License No.
PSY11635
License State
CA
Taxonomy Description
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)

Medicare Participation & PECOS Enrollment Status

Mary Ewert 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 and Durable Medical Equipment (DME).

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: 10-01-2017

  • Opt-Out End Date: 10-01-2025

  • 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): No

  • Eligible to Order or Refer Power Mobility Devices: No

Reviews for MARY J. EWERT D.M.H.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1508903618
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2508180662
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 0 + 8 + 1 + 8 + 0 + 6 + 6 + 2 + 24 = 62
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 62 = 88

The NPI number 1508903618 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1912993627DR. AILEEN NAGAKO WATANABE MD
Individual
Internal Medicine2186 GEARY BLVD SUITE 213
SAN FRANCISCO, CA 94115
(415) 292-3500
1568443455DR. RICHARD L CAPLIN M.D.
Individual
Internal Medicine2186 GEARY BLVD
SAN FRANCISCO, CA 94115
(415) 921-5300
1891770905 FRANK J FARRELL M.D.
Individual
Specialist2186 GEARY BLVD SUITE 320
SAN FRANCISCO, CA 94115
(415) 749-6900
1801990841DR. LAWRENCE H WERBOFF M.D.
Individual
Urology2186 GEARY BLVD SUITE 214
SAN FRANCISCO, CA 94115
(415) 922-3047
1376644955 STEPHEN PREBLE DAANE MD
Individual
Plastic Surgery2186 GEARY BLVD 212
SAN FRANCISCO, CA 94115
(415) 561-0342
1225119704SAN FRANCISCO UROLOGY MED GR
Organization
Urology2186 GEARY BLVD SUITE 214
SAN FRANCISCO, CA 94115
(415) 922-3255
1659450864DR. HERBERT B GOODMAN MD
Individual
Internal Medicine2186 GEARY BLVD STE. 312
SAN FRANCISCO, CA 94115
(415) 921-3141
1912124595DR. PATRICIA JANE WEISS PH.D.
Individual
Clinical Neuropsychologist2186 GEARY BLVD SUITE 315
SAN FRANCISCO, CA 94115
(415) 566-2022
1679719231 MICHAEL DAVID LEVIN PSY.D.
Individual
Psychologist (Clinical)2186 GEARY BLVD SUITE 211
SAN FRANCISCO, CA 94115
(415) 441-2377
1902038599DR. GARY N. GROSSMAN PH.D.
Individual
Psychologist (Clinical)2186 GEARY BLVD SUITE 211
SAN FRANCISCO, CA 94115
(415) 928-4662
1346533825MS. CLARE THERESE CATTARIN N.P.
Individual
Nurse Practitioner (Primary Care)2186 GEARY BLVD SUITE 316
SAN FRANCISCO, CA 94115
(415) 346-3081
1336299155DR. DAWN D. CORTLAND MD
Individual
Internal Medicine2186 GEARY BLVD SUITE 316
SAN FRANCISCO, CA 94115
(415) 346-8931
1790941136SAN FRANCISCO GASTROENTEROLOGY INC
Organization
Internal Medicine (Gastroenterology)2186 GEARY BLVD SUITE 320
SAN FRANCISCO, CA 94115
(415) 749-6900
1275704744 CATHLEEN NORA CABANSAG MD
Individual
Internal Medicine (Gastroenterology)2186 GEARY BLVD SUITE #320
SAN FRANCISCO, CA 94115
(415) 749-6900
1255332094DR. C GLENN COONEY M.D.
Individual
Internal Medicine2186 GEARY BLVD SUITE 210
SAN FRANCISCO, CA 94115
(415) 346-7200
1104282441ROBERT SAVALA MD, INTERVENTIONAL PAIN MGMT CORP
Organization
Anesthesiology (Pain Medicine)2186 GEARY BLVD
SAN FRANCISCO, CA 94115
(903) 787-5850
1114914918DR. SALMA S. KHAN M.D.
Individual
Psychiatry & Neurology (Psychiatry)2186 GEARY BLVD SUITE #315
SAN FRANCISCO, CA 94115
(415) 742-7444
1427569433DR. JANELLE ANNE GUNTHER CHEONG DDS
Individual
Dentist2186 GEARY BLVD
SAN FRANCISCO, CA 94115
(562) 508-2550
1972746824ROBERT SAVALA MD INTERVENTIONAL PAIN MANAGEMENT CORP
Organization
Anesthesiology (Pain Medicine)2186 GEARY BLVD 210
SAN FRANCISCO, CA 94115
(415) 346-8555
1073617023DR. RODMAN S ROGERS M.D.
Individual
Urology2186 GEARY BLVD SUITE 214
SAN FRANCISCO, CA 94115
(415) 922-0347

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508903618, enumerated in the NPI registry as an "individual" on January 30, 2007

The provider is located at 2186 Geary Blvd Suite 211 San Francisco, Ca 94115 and the phone number is (415) 922-7646

The provider's speciality is Psychologist with taxonomy code 103T00000X

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

No, the provider signed an affidavit on October 01, 2017 to opt-out of the Medicare program. The provider is excluded from the Medicare program until October 01, 2025.

This NPI record was last updated on January 30, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.