Dr. May C. Shein, MD

  • Oakland, CA
  • Family medicine physician
NPI1255565008PAC ID0547444069
Medicare services, 2023
15
Part D claims, 2024
2,004
Hospital affiliations
2
Industry payments
$536
Medical group
1
Practice address
1411 East 31st Street, Oakland, CA 94602
Practice phone
Call (510) 437-4800
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Alameda Health System - Highland Hospital

Hospital · Oakland, California

See all 4 affiliations

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Dr. May C. Shein is a family medicine physician in Oakland, California

Dr. Shein practices at Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County.

Dr. Shein's NPI, 1255565008, was assigned on May 7, 2009. Dr. Shein graduated from University Institute of Medicine 1 in 1999. Dr. Shein holds California license A109552.

NPI and contact details
Medicare PAC ID
0547444069
NPI enumeration date
May 7, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 437-4800
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
53
Medical school graduation
1999

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. May C. Shein practices at Alameda Health System - Highland Hospital in Oakland, California

Dr. Shein's primary practice is Alameda Health System - Highland Hospital, at 1411 East 31st Street, Oakland, CA 94602 in Alameda County. The practice phone is (510) 437-4800.

Source: Dmand AI Affiliation Data

Dr. May C. Shein is affiliated with 3 sites of care and 1 medical group

Dr. Shein's primary practice is Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County. Dr. Shein is also affiliated with Alameda Hospital. The medical group on file is Alameda Health System. Dmand AI also links Dr. Shein to 1 more community health center, named with a free account.

See all 4 affiliations for Dr. Shein

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. May C. Shein's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shein practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Alameda Health System - Highland HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. May C. Shein is one of 15,680 family medicine physicians in California

Family medicine is Dr. Shein's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Shein is board certified in family medicine by the American Board of Family Medicine. Dr. Shein is licensed in California.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense A109552 · 2009 to 2026 · taxonomy 207Q00000X

Clinical focus

Dmand AI lists acute gastroduodenitis, anxiety, asthma, bronchitis, chronic diabetes, chronic hypertension, chronic kidney disease and conjunctivitis among the conditions Dr. Shein treats.

Family medicine physicians near Dr. Shein

Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. May C. Shein billed Medicare for 15 services in 2023

CMS data shows 15 Medicare services from Dr. Shein across 1 procedure code in 2023. Medicare paid $743 for them. Every service was in an office.

Medicare services, 202315
Paid by Medicare$743
Procedure codes1

Dr. Shein's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Other services
2022: 282023: 1546%

Dr. Shein compared with the California median for family medicine physicians, 2023

  • Dr. Shein
  • California median
Medicare services
15vs 24694% below
Part D claims
1,546vs 83386% above

Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Shein's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Shein

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shein and other family medicine physicians in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. May C. Shein's patients have a median age of 67

Across all payers, Dmand AI patient panel data puts Dr. Shein's median patient age at 67, with 56% women.

Dr. Shein's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women56%
  • Men43%

Source: Dmand AI Patient Panel Data

Dr. May C. Shein wrote 2,004 Medicare Part D claims in 2024

In 2024, Dr. Shein wrote 2,004 Medicare Part D claims for 189 patients. 73% of them were for generic drugs. CMS names the drug for 1,546 of them, across 43 drugs with 11 or more claims each, at $1,011,982 in total drug cost. In 2023, CMS named 1,315 claims across 44 drugs.

Part D claims, 20242,004
Drugs named by CMS43
Total drug cost$1M
Part D patients189

Dr. Shein's Part D claims by kind of drug, 2024

  • Generic1,460 claims73%
  • Brand-name533 claims27%
  • Other11 claims1%

Dr. Shein's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Shein's Part D claims, 2024

  • Opioids2%35 of 2,004 claims
  • Antibiotics2%33 of 2,004 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,3152024: 1,54618%

Drugs named by CMS: 43 in 2024, 44 in 2023.

See all prescribing by Dr. Shein

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. May C. Shein takes part in Medicare

Dr. Shein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. May C. Shein received $536 in industry payments in 2016

CMS Open Payments shows 31 general payments to Dr. Shein from 6 drug and device companies in 2016. Food and beverage make up the largest share, 80% of the total. Janssen Pharmaceuticals, Inc paid the most, $237.

General payments to Dr. Shein by kind, 2016 to 2016

$536in total
  • Food and beverage$43180%
  • Education$10520%

Companies that paid Dr. Shein the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Shein

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. May C. Shein has 1 award and honors on record

Dmand AI lists 1 award for Dr. Shein, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Shein

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. May C. Shein graduated from University Institute of Medicine 1

Dr. Shein graduated from University Institute of Medicine 1 in 1999.

  1. Medical schoolUniversity Institute of Medicine 1
  2. Board certified in family medicineAmerican Board of Family Medicine

Source: Dmand AI Professional Profile Data

Dr. May C. Shein accepts plans from 12 insurance carriers

Dr. Shein is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • +4 more carriersWith a free account

Plan types Dr. Shein accepts, by number of carriers

  1. PPO8
  2. HMO6
  3. Medicare6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. May C. Shein's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. May C. Shein

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. May C. Shein's NPI number?

Dr. May C. Shein's NPI number is 1255565008. It was assigned on May 7, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. May C. Shein?

Dr. May C. Shein is a family medicine physician in Oakland, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. May C. Shein practice?

Dr. Shein practices at 1411 East 31st Street, Oakland, CA 94602. Dr. Shein's primary practice is Alameda Health System - Highland Hospital in Oakland, California, part of Alameda County. Dmand AI also links Dr. Shein to 1 community health center.

What is Dr. May C. Shein's office phone number?

The practice phone on file for Dr. Shein is (510) 437-4800.

What is Dr. May C. Shein's medical license number?

Dr. Shein holds California license A109552.

Which hospitals is Dr. May C. Shein affiliated with?

Dr. Shein practices at Alameda Health System - Highland Hospital in Oakland, California. Dr. Shein is also affiliated with Alameda Hospital.

What medical group is Dr. May C. Shein part of?

Dr. Shein is linked to Alameda Health System.

Does Dr. May C. Shein accept Medicare?

Yes. CMS data shows Dr. Shein billed Medicare for 15 services in 2023, and Dr. Shein accepts Medicare assignment.

Is Dr. May C. Shein board certified?

Yes. Dr. Shein is board certified in family medicine by the American Board of Family Medicine.

What services does Dr. May C. Shein bill to Medicare?

In 2023, Dr. Shein's most billed Medicare services were medical service (0134A).

Show 5 more questionsShow fewer questions

Where did Dr. May C. Shein go to medical school?

Dr. Shein graduated from University Institute of Medicine 1 in 1999.

What drugs does Dr. May C. Shein prescribe most?

In 2024 Medicare Part D data, Dr. Shein's most prescribed drugs by claims were Atorvastatin Calcium, Biktarvy and Amlodipine Besylate.

Has Dr. May C. Shein received payments from drug or device companies?

CMS Open Payments shows $536 in general payments to Dr. Shein from 6 companies from 2016 to 2016. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. May C. Shein been practicing?

Dr. Shein graduated from medical school in 1999, 27 years ago.

What insurance does Dr. May C. Shein accept?

Dr. Shein is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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