NPPES file of Aug 9, 2026

John Pitchford Greaves, M.D.

Anatomic Pathology & Clinical Pathology Physician · Redding, CA

John Pitchford Greaves, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Redding, California, and NPI 1821221136, issued on Sep 2, 2009. Check the license (California C37307, 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
1821221136
Name
John Pitchford Greaves
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
C37307 CA
Self-reported in NPPES; status is on the state search
Practice location
15742 Middletown Park Dr, Redding, CA 96001
Phone
(530) 244-1299
Enumerated
Sep 2, 2009
Record last updated
Sep 2, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(530) 246-9501
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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Verify John Pitchford Greaves in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C37307
    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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90% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024

19 Medicare Part D claims, against an average of 192 among the 401 providers of this specialty who prescribed in Part D.

  1. John Greaves19
  2. Specialty average192

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: $148.11

1 payment: food and beverage; the largest payer was Stryker Corporation. The 2,607 providers of this specialty with any payment received $3,565.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Greaves$148.11
  2. Specialty average$3,565.00

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

John Pitchford Greaves among 1,554 anatomic pathology & clinical pathology physician records in California

John Pitchford Greaves, M.D. is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 62% of them.

  • NPI issued2009 · 62% of these records are older, 33% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2009 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Tikoes Blankenberg, M.D.Redding, CA 960011518022698
  2. Ronald England, D.O.Redding, CA 960011578620472
  3. Matthew Kilpatrick, MDRedding, CA 960011790340503
  4. Edward Laine, DORedding, CA 960011972583102
  5. Allen Mendez, M.D.Redding, CA 960011437440815
  6. Julia Mooney, MDRedding, CA 960011700855525
  7. Allen Morris, M.D.Redding, CA 960011760655336
  8. Sean Pitman, M.D.Redding, CA 960011730245390

Common questions

What is John Pitchford Greaves, M.D.'s NPI number?

John Pitchford Greaves, M.D.'s National Provider Identifier (NPI) is 1821221136, issued on Sep 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is John Pitchford Greaves, M.D. located?

The NPPES record lists a practice address at 15742 Middletown Park Dr, Redding, CA, 96001. Phone: (530) 244-1299. Providers update this record themselves, so call before visiting.

How can I verify John Pitchford Greaves, M.D.'s license?

NPPES lists California license number C37307, 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 John Pitchford Greaves, M.D. prescribe under Medicare Part D?

In 2024, John Pitchford Greaves, M.D. had 19 Medicare Part D claims; the average among anatomic pathology & clinical pathology physician prescribers was 192. 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.