NPPES file of Aug 9, 2026

Madeline Underwood, MD

Family Medicine Physician · San Rafael, CA

Madeline Underwood, MD is a family medicine physician with a practice address in San Rafael, California, and NPI 1427618685, issued on Jun 19, 2019. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427618685
Name
Madeline Underwood
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
0116032868 VA
Self-reported in NPPES; status is on the state search
Practice location
1004 Northgate Dr, San Rafael, CA 94903
Phone
(888) 663-6331
Enumerated
Jun 19, 2019
Record last updated
Mar 14, 2025
Fax
(415) 252-7176
Medicare enrollment
Enrolled (PECOS I20240711002046); accepts Medicare assignment
Medical or professional school
Virginia Commonwealth University, School Of Medicine, 2019
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1004 Northgate Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Birgitta BellaPhysician Assistant1639368210
  2. Jessica Capretto, PA-CPhysician Assistant1407135957
  3. Christine Hodgson, PNPPediatric Nurse Practitioner1215162490
  4. Kimberlie Keller, DOFamily Medicine Physician1851430896
  5. Claudia Levine, MDInternal Medicine Physician1619026572
  6. Natalie Levine, FNPFamily Nurse Practitioner1659803369

Verify Madeline Underwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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54% fewer Medicare Part D claims than the average family medicine physician in 2024

1,639 Medicare Part D claims for 384 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 93 claims were for opioids.

  1. Madeline Underwood1,639
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium100 claims
  2. Amlodipine Besylate85 claims
  3. Losartan Potassium67 claims
  4. Hydrocodone-Acetaminophen43 claims
  5. Lisinopril37 claims
  6. Albuterol Sulfate Hfa34 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $85.81

4 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Madeline Underwood$85.81
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. One Medical Group IncSan Rafael, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Madeline Underwood among 17,133 family medicine physician records in California

Madeline Underwood, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2019 · median 2005 among the 10,652 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 family medicine physician records list a practice address in San Rafael

They are 37 of the 3,159 NPPES records with a practice address in San Rafael, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Charles Calza, M.D.San Rafael, CA 949031629081161
  2. John Clothier, M.D.San Rafael, CA 949031750431250
  3. Marissa Fernandez Kiemele, MDSan Rafael, CA 949031144297516
  4. Orna Hananel, MDSan Rafael, CA 949031497839484
  5. Ann Hathaway, MDSan Rafael, CA 949031093893752
  6. Brian Hertz, MDSan Rafael, CA 949031831273812
  7. Meenal Lohtia, M.D.San Rafael, CA 949031205883121
  8. Sarah Mansell, MDSan Rafael, CA 949031548332364

Common questions

What is Madeline Underwood, MD's NPI number?

Madeline Underwood, MD's National Provider Identifier (NPI) is 1427618685, issued on Jun 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Madeline Underwood, MD located?

The NPPES record lists a practice address at 1004 Northgate Dr, San Rafael, CA, 94903. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.

How can I verify Madeline Underwood, MD's license?

Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Madeline Underwood, MD prescribe under Medicare Part D?

In 2024, Madeline Underwood, MD had 1,639 Medicare Part D claims for 384 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.