Registry data as of Aug 27, 2026

Pamela Ling, MD

Internal Medicine Physician · San Francisco, CA

Pamela Ling, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1871557827, issued on Apr 14, 2006. Check the license (California A65590, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1871557827
Name
Pamela Ling
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A65590 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 353-4624
Enumerated
Apr 14, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 400 Parnassus Ave

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

  1. Jessica Abele, DPTPhysical Therapist1851648133
  2. Ian Adatia, MB CHBPediatrics Physician1427085299
  3. Daniel Adelman, M.D.Allergy & Immunology Physician1922041821
  4. Joshua Adler, MDInternal Medicine Physician1194781351
  5. Justin Ahn, M.D.Urology Physician1063755148
  6. Weiyun Ai, MDMedical Oncology Physician1649346842

Verify Pamela Ling in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A65590
    Check 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

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

1,275 Medicare Part D claims for 153 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Pamela Ling1,275
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium137 claims
  2. Rosuvastatin Calcium41 claims
  3. Amlodipine Besylate39 claims
  4. Metoprolol Succinate36 claims
  5. Fluticasone Propionate35 claims
  6. Levothyroxine Sodium34 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.

The practice group's Medicare quality score for 2023: 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

2 hospital and facility affiliations

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

1,593 internal medicine physician records list a San Francisco practice address

They are 1,593 of the 38,143 NPPES records with a San Francisco practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Pamela Ling, MD's NPI number?

Pamela Ling, MD's National Provider Identifier (NPI) is 1871557827, issued on Apr 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Pamela Ling, MD located?

The NPPES record lists a practice address at 400 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-4624. Providers update this record themselves, so call before visiting.

How can I verify Pamela Ling, MD's license?

NPPES lists California license number A65590, as entered by the provider. 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 Pamela Ling, MD prescribe under Medicare Part D?

In 2024, Pamela Ling, MD had 1,275 Medicare Part D claims for 153 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

What is Pamela Ling, MD's Medicare quality score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.