NPPES file of Aug 9, 2026

Michael Tandick Charney, M.D.

Infectious Disease Physician · San Jose, CA

Michael Tandick Charney, M.D. is an infectious disease physician with a practice address in San Jose, California, and NPI 1700955143, issued on Nov 7, 2006. Check the license (California G22044, as entered in NPPES) 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
1700955143
Name
Michael Tandick Charney
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
G22044 CA
Self-reported in NPPES; status is on the state search
Practice location
2100 Forest Ave, San Jose, CA 95128
Phone
(408) 286-6470
Enumerated
Nov 7, 2006
Record last updated
Dec 4, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(408) 286-2570
Medicaid ID
00G220440 CA
Medicare enrollment
Enrolled (PECOS I20050404001052); accepts Medicare assignment
Medical or professional school
New York Medical College, 1966
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 2100 Forest Ave

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

  1. Alphonsus Cheung, MDAnesthesiology Physician1609822469
  2. David Chui, MDGastroenterology Physician1942373998
  3. David Eby, MDInternal Medicine Physician1023122959
  4. Mona Joshi, ODOptometrist1184146714
  5. Michael Martin, M.D.Internal Medicine Physician1174655633
  6. Thomas McGuire, M.D.Internal Medicine Physician1801925151

Verify Michael Tandick Charney in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G22044
    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

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49% more Medicare Part D claims than the average infectious disease physician in 2024

1,025 Medicare Part D claims for 197 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Michael Charney1,025
  2. Specialty average689

Most prescribed

  1. Rifampin166 claims
  2. Doxycycline Hyclate51 claims
  3. Biktarvy47 claims
  4. Fluconazole46 claims
  5. Ciprofloxacin Hcl45 claims
  6. Ethambutol Hcl45 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: $453.59

6 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Charney$453.59
  2. Specialty average$4,362.19

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

Michael Tandick Charney among 1,119 infectious disease physician records in California

Michael Tandick Charney, M.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 54% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1966 · median 2003 among the 735 with a school on file
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Gulshan Bhatia, MDSan Jose, CA 951281588639181
  2. Carol Hu, M.D.San Jose, CA 951281124286869
  3. Stephenie LeSan Jose, CA 951281689107617
  4. Laurence Mirels, MDSan Jose, CA 951281265598411
  5. Ritika PrasadSan Jose, CA 951281407484090
  6. Rani Ramachandran, M.D.San Jose, CA 951281881621324
  7. Shaurya Sharma, MBBS MDSan Jose, CA 951281124542253
  8. David Stevens, MDSan Jose, CA 951281578656021

Common questions

What is Michael Tandick Charney, M.D.'s NPI number?

Michael Tandick Charney, M.D.'s National Provider Identifier (NPI) is 1700955143, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Tandick Charney, M.D. located?

The NPPES record lists a practice address at 2100 Forest Ave, San Jose, CA, 95128. Phone: (408) 286-6470. Providers update this record themselves, so call before visiting.

How can I verify Michael Tandick Charney, M.D.'s license?

NPPES lists California license number G22044, 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 Michael Tandick Charney, M.D. prescribe under Medicare Part D?

In 2024, Michael Tandick Charney, M.D. had 1,025 Medicare Part D claims for 197 beneficiaries; the average among infectious disease physician prescribers was 689. 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.