NPPES file of Aug 9, 2026

Gregory Daniel Spin, D.O.

Nephrology Physician · Roseville, CA

Gregory Daniel Spin, D.O. is a nephrology physician with a practice address in Roseville, California, and NPI 1114977386, issued on May 11, 2006. Check the license (California 20A7602, 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
1114977386
Name
Gregory Daniel Spin
Credential
D.O.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
20A7602 CA
Self-reported in NPPES; status is on the state search
Practice location
151 N Sunrise Ave, Roseville, CA 95661
Phone
(916) 789-1505
Enumerated
May 11, 2006
Record last updated
Dec 15, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(916) 789-1513
Medicaid ID
GR0100970 CA
Medicare enrollment
Enrolled (PECOS I20050211000904); accepts Medicare assignment
Medical or professional school
College Of Osteopathic Physicians And Surgeons Of Los Angeles, 1999
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 151 N Sunrise Ave

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

  1. Tara Appleby, MS SLPSpeech-Language Pathologist1407089170
  2. Adarsh Bhat, M.D.Nephrology Physician1861443228
  3. Anupama Bhat, MDRheumatology Physician1679690200
  4. Beau Bimson, MSPediatric Occupational Therapist1114206927
  5. Harinder Bisla, MDInternal Medicine Physician1174512685
  6. Mandie Boone, MS OTROccupational Therapist1609009364

Verify Gregory Daniel Spin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7602
    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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2.1 times the Medicare Part D claims of the average nephrology physician in 2024

3,090 Medicare Part D claims for 389 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Gregory Spin3,090
  2. Specialty average1,465

Most prescribed

  1. Calcitriol363 claims
  2. Amlodipine Besylate263 claims
  3. Losartan Potassium211 claims
  4. Carvedilol180 claims
  5. Furosemide131 claims
  6. Lisinopril131 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: $255.69

7 payments; by number, the most common kind was food and beverage; the largest payer was Kyowa Kirin, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Spin$255.69
  2. Specialty average$3,091.37

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. Summit Nephrology Medical Group, Inc.Roseville, CA

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

Gregory Daniel Spin among 1,468 nephrology physician records in California

Gregory Daniel Spin, D.O. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1999 · median 2001 among the 1,128 with a school on file
  • Record last updated2014 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Adarsh Bhat, M.D.Roseville, CA 956611861443228
  2. Don Chang, M.D.Roseville, CA 956611619101805
  3. Lana Gafter, M.D.Roseville, CA 956611376529552
  4. Piper Hughes, M.D.Roseville, CA 956611750647285
  5. Donald Klug, M.D.Roseville, CA 956611811923568
  6. Monika Patel, DORoseville, CA 956611700061017
  7. Jennifer Pettigrew, MDRoseville, CA 956611922115088
  8. Parthassarathy Raguram, MD,MRCPI,FASNRoseville, CA 956611629056460

Common questions

What is Gregory Daniel Spin, D.O.'s NPI number?

Gregory Daniel Spin, D.O.'s National Provider Identifier (NPI) is 1114977386, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Daniel Spin, D.O. located?

The NPPES record lists a practice address at 151 N Sunrise Ave, Roseville, CA, 95661. Phone: (916) 789-1505. Providers update this record themselves, so call before visiting.

How can I verify Gregory Daniel Spin, D.O.'s license?

NPPES lists California license number 20A7602, 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 Gregory Daniel Spin, D.O. prescribe under Medicare Part D?

In 2024, Gregory Daniel Spin, D.O. had 3,090 Medicare Part D claims for 389 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.