DR. JAMES WELDON MAAS M.D. PH.D.
NPI 1255506788
Psychiatry & Neurology - Neurology in San Francisco, CA


Quality Rating: 76.34 out of 100 score

NPI Status: Active since April 25, 2008

Contact Information

505 PARNASSUS AVENUE
UCSF DEPARTMENT OF NEUROLOGY
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 476-1489

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  • Individual
  • Male
  • Years of Experience 20
  • Psychiatry & Neurology
  • Neurology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About JAMES MAAS

This page provides the complete NPI Profile along with additional information for James Maas, a provider established in San Francisco, California with a medical specialization in Psychiatry & Neurology, focusing in neurology and more than 20 years of experience. He graduated from Washington University School Of Medicine in 2006. The healthcare provider is registered in the NPI registry with number 1255506788 assigned on April 2008. The practitioner's primary taxonomy code is 2084N0400X with license number A102712 (CA). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1255506788
Provider Name
DR. JAMES WELDON MAAS M.D. PH.D.
Gender
Male
Entity Type
Individual
Location Address
505 PARNASSUS AVENUE UCSF DEPARTMENT OF NEUROLOGY SAN FRANCISCO, CA 94143
Location Phone
(415) 476-1489
Mailing Address
505 PARNASSUS AVENUE BOX 0114 UCSF DEPARTMENT OF NEUROLOGY SAN FRANCISCO, CA 94143
Medical School Name
WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2006
Is Sole Proprietor?
No
Enumeration Date
04-25-2008
Last Update Date
04-25-2008
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
A102712
License State
CA
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Medicare Participation & PECOS Enrollment Status

James Maas 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.

James Maas 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: 4789716226

    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: I20100719000325

    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

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 14 times for 11 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 40 times for 36 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 116 times for 78 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 36 times for 36 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

This service was performed 89 times for 44 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $38.45 for a new patient copayment and $29.87 for an established patient copayment.

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 94143 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $153.83
  • Minimum New Patient Price $69
  • Maximum New Patient Price $202.35
  • Average New Patient Copayment $38.45
  • Minimum New Patient Copayment $17.25
  • Maximum New Patient Copayment $50.58

Established Patients Visit Costs *

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

  • Average Established Patient Price $119.48
  • Minimum Established Patient Price $23.44
  • Maximum Established Patient Price $166.46
  • Average Established Patient Copayment $29.87
  • Minimum Established Patient Copayment $5.86
  • Maximum Established Patient Copayment $41.61

* 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.

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 76.34, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 76.34 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 77.06

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: N/A

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: 52.02

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: 52.02

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

Reviews for DR. JAMES WELDON MAAS M.D. PH.D.

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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.
1255506788
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2210510012716
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 1 + 0 + 5 + 1 + 0 + 0 + 1 + 2 + 7 + 1 + 6 + 24 = 52
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 52 = 88

The NPI number 1255506788 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
1295828390UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
Organization
General Acute Care Hospital505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-2742
1861567604DR. ANNE IRENE THORSON MD
Individual
Internal Medicine (Cardiovascular Disease)505 PARNASSUS AVENUE M314
SAN FRANCISCO, CA 94143
(415) 353-1744
1750520821DR. MELISSA GREER ROSENSTEIN MD
Individual
Obstetrics & Gynecology505 PARNASSUS AVENUE BOX 0132, M1483
SAN FRANCISCO, CA 94143
(415) 476-5192
1912344631MS. ANN CAROL GOFORTH NP
Individual
Nurse Practitioner (Adult Health)505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-8405
1407071087MR. GIL RESURRECCION PONSONES CNP
Individual
Nurse Practitioner (Acute Care)505 PARNASSUS AVENUE ROOM M-917
SAN FRANCISCO, CA 94143
(415) 353-1847
1942770565 WILLIAM ALEGRIA PHARMD
Individual
Pharmacist505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 476-1000
1881012128 ALEXANDER YOO M.D.
Individual
Psychiatry & Neurology (Neurology)505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(201) 396-4488
1528528619MS. CAROL JANE SCANLON CRNA
Individual
Nurse Anesthetist, Certified Registered505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-8054
1043303241UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
Organization
General Acute Care Hospital505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-2742
1831282144UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
Organization
General Acute Care Hospital505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-2742
1104919208UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
Organization
General Acute Care Hospital505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-2742
1295478451 SUHAS RAO
Individual
Student in an Organized Health Care Education/Training Program505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 476-1528
1306541578 GALEN LASERSON BUSSMANN MBA
Individual
Student in an Organized Health Care Education/Training Program505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-1529
1528209236DR. JAHAN FAHIMI M.D.
Individual
Emergency Medicine505 PARNASSUS AVENUE BOX 0209
SAN FRANCISCO, CA 94143
(415) 476-1000
1518311810 COLIN PURMAL
Individual
Internal Medicine505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 476-1529
1346809506 VAIBHAV BIRDA MD
Individual
Hospitalist505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 476-1000
1174028385 RUTH ZHANG
Individual
Pathology (Anatomic Pathology & Clinical Pathology)505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-1613
1598500761 BENJAMIN FRANK BELAND MD
Individual
Student in an Organized Health Care Education/Training Program505 PARNASSUS AVENUE
SAN FRANCISCO, CA 94143
(415) 353-1994
1861996001 HILARY CHILDERS
Individual
Internal Medicine505 PARNASSUS AVENUE ROOM M-987
SAN FRANCISCO, CA 94143
(415) 476-1528
1104647965DR. ELIZABETH MADELEINE EDWINA COLE MBBS
Individual
Anesthesiology505 PARNASSUS AVENUE DEPARTMENT OF ANESTHESIA AT UCSF
SAN FRANCSICO, CA 94143
(415) 476-1000

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255506788, enumerated in the NPI registry as an "individual" on April 25, 2008

The provider is located at 505 Parnassus Avenue Ucsf Department Of Neurology San Francisco, Ca 94143 and the phone number is (415) 476-1489

The provider's speciality is Psychiatry & Neurology with taxonomy code 2084N0400X with a focus in Neurology

The provider has more than 20 years of experience. He graduated from Washington University School Of Medicine in 2006.

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.

Medicare beneficiaries should expect a typical cost of $153.83 with an average copayment of $38.45 for new patient appointments. Established patients should expect a typical charge of $119.48 and an average copayment of 29.87. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, New patient office or other outpatient visit, 60-74 minutes and Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or.

This NPI record was last updated on April 25, 2008. 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.