MARGARET L. MARQUEZ MD
NPI 1992855712
Internal Medicine - Hospice and Palliative Medicine in Santa Rosa, CA

NPI Status: Active since January 12, 2007

Contact Information

401 BICENTENNIAL WAY
SANTA ROSA, CA
ZIP 95403
Phone: (707) 393-4000

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  • Individual
  • Female
  • Years of Experience 32
  • Internal Medicine
  • Hospice and Palliative Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARGARET MARQUEZ

This page provides the complete NPI Profile along with additional information for Margaret Marquez, an internist established in Santa Rosa, California with a medical specialization in Internal Medicine, focusing in hospice and palliative medicine and more than 32 years of experience. She graduated from University Of California, Davis School Of Medicine in 1994. The healthcare provider is registered in the NPI registry with number 1992855712 assigned on January 2007. The practitioner's primary taxonomy code is 207RH0002X with license number AO60357 (CA). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1992855712
Provider Name
MARGARET L. MARQUEZ MD
Gender
Female
Entity Type
Individual
Location Address
401 BICENTENNIAL WAY SANTA ROSA, CA 95403
Location Phone
(707) 393-4000
Mailing Address
1800 HARRISON ST FL 7 OAKLAND, CA 94612
Mailing Phone
(510) 625-6262
Medical School Name
UNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduation Year
1994
Is Sole Proprietor?
No
Enumeration Date
01-12-2007
Last Update Date
12-20-2021
Code Navigator

An internist like Margaret Marquez 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.

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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 Hospice and Palliative Medicine

Taxonomy Code
207RH0002X
Type
Allopathic & Osteopathic Physicians
License No.
AO60357
License State
CA
Taxonomy Description
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

A060357 (CA)
2207RG0300XAllopathic & Osteopathic Physicians

Internal Medicine
Geriatric Medicine

A060357 (CA)

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
00A603570MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Margaret Marquez is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Margaret Marquez 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

  • PECOS PAC ID: 1658381355

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20060425000813

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • 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

Reviews for MARGARET L. MARQUEZ MD

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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.
1992855712
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
291821651072
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 9 + 1 + 8 + 2 + 1 + 6 + 5 + 1 + 0 + 7 + 2 + 24 = 68
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 68 = 22

The NPI number 1992855712 is valid because the calculated check digit 2 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
1649276940 VIRGINIA E HOFMANN MD
Individual
Psychiatry & Neurology (Psychiatry)401 BICENTENNIAL WAY DEPARTMENT OF PSYCHIATRY
SANTA ROSA, CA 95403
(707) 571-3778
1669468682 JAMES F STONE JR. MD
Individual
Family Medicine401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4344
1750354106DR. EDWARD A. ROSE M.D.
Individual
Family Medicine401 BICENTENNIAL WAY SUITE 130
SANTA ROSA, CA 95403
(707) 393-4152
1568406007 KAREN E. ROSE M.D.
Individual
Family Medicine401 BICENTENNIAL WAY SUITE 130
SANTA ROSA, CA 95403
(707) 393-4005
1578583233 LINDA LORZ CRNA
Individual
Registered Nurse401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4000
1811004591MS. SARAH JOSEPHINE HARVEY NP, CDE
Individual
Nurse Practitioner (Family)401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-3916
1679685754MS. PAULA MARIE KELLEHER R.N., N.P., M.S.N.
Individual
Nurse Practitioner (Women's Health)401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4203
1124120936 ANITA LEVINE-GOLDBERG NPMSN
Individual
Nurse Practitioner (Obstetrics & Gynecology)401 BICENTENNIAL WAY SUITE 210
SANTA ROSA, CA 95403
(707) 571-4136
1487756714MS. MARIANNE SCERRI RNP
Individual
Registered Nurse (Women's Health Care, Ambulatory)401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4081
1891894580MS. DEBORAH A KOVAR CRNA
Individual
Nurse Anesthetist, Certified Registered401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4854
1770677783 SABAHAT LATIF IMRAN MPHARM.
Individual
Pharmacist401 BICENTENNIAL WAY KAISER MEDICAL CENTER
SANTA ROSA, CA 95403
(707) 571-4354
1376639880MRS. PATRICIA M POWER RNP
Individual
Nurse Practitioner (Women's Health)401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4400
1427144294DR. SAMUEL SANGMIN LEE PHARM.D.
Individual
Pharmacist401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4700
1528154333DR. LAN C CHOE PHARMD
Individual
Pharmacist401 BICENTENNIAL WAY HOSPITAL PHARMACY
SANTA ROSA, CA 95403
(707) 571-4700
1386731008 JAMES W BROWN RPH
Individual
Pharmacist401 BICENTENNIAL WAY INPATIENT HOSPITAL PHARMACY
SANTA ROSA, CA 95403
(707) 571-4700
1972690576DR. ELIZABETH JEAN ARIETTA PHARM.D.
Individual
Pharmacist401 BICENTENNIAL WAY KAISER PERMANENTE HOSPITAL PHARMACY
SANTA ROSA, CA 95403
(707) 571-4206
1760570535 LAURA JONES O'CONNOR M.D.
Individual
Family Medicine401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-3371
1417045758 ALEXANDRA HUBBARD
Individual
Nurse Practitioner (Family)401 BICENTENNIAL WAY FMS
SANTA ROSA, CA 95403
(707) 571-4300
1457441701 KENNETH DELANO WHITBECK RPH
Individual
Pharmacist401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4700
1992895155 NGAN B DUONG PHARM.D
Individual
Pharmacist401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
(707) 571-4700

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992855712, enumerated in the NPI registry as an "individual" on January 12, 2007

The provider is located at 401 Bicentennial Way Santa Rosa, Ca 95403 and the phone number is (707) 393-4000

The provider's speciality is Internal Medicine with taxonomy code 207RH0002X with a focus in Hospice and Palliative Medicine

The provider has more than 32 years of experience. She graduated from University Of California, Davis School Of Medicine in 1994.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

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, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

This NPI record was last updated on January 12, 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.