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AmniocentesisAmniotic FluidChlamydia Infections
Dr. Douglas Whitmer Hershey, MD
NPI1902987787
- Medicare services, 2018
- 15
- Publications
- 12
- Industry payments
- $336
- Insurance carriers
- 3
- State licenses
- 2
- Practice address
- 1710 S Del Mar Ave, San Gabriel, CA 91776
- Practice phone
- Call (916) 736-6888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hershey's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Douglas Whitmer Hershey is a maternal-fetal medicine specialist in San Gabriel, California
Dr. Hershey practices in San Gabriel, California.
Dr. Hershey's NPI, 1902987787, was assigned on October 18, 2006. Dr. Hershey graduated from Weill Cornell Medicine in 1969. Dr. Hershey's California license number on file is 00G189620.
NPI and contact details
- NPI
- 1902987787NPI Registry (opens in a new tab)
- NPI enumeration date
- October 18, 2006
- NPI status
- Active
- Practice phone
- (916) 736-6888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Douglas Whitmer Hershey's practice address is in San Gabriel, California
Dr. Hershey's practice address in the NPI Registry is 1710 S Del Mar Ave, San Gabriel, CA 91776, in Los Angeles County. The practice phone is (916) 736-6888.
- NPI Registry address1710 S Del Mar Ave, San Gabriel, CA 91776 · Los Angeles CountyPhone(916) 736-6888
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Douglas Whitmer Hershey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hershey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Hershey's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Douglas Whitmer Hershey is one of 318 maternal-fetal medicine specialists in California
Maternal and fetal medicine is Dr. Hershey's primary specialty in the NPI Registry, under taxonomy code 207VM0101X. Dr. Hershey is board certified in clinical cytogenetics by the American Board of Medical Genetics and Genomics. Dmand AI has Dr. Hershey's licenses on file in 2 states: California and Colorado.
Specialties and state licenses
- Maternal and fetal medicine, CaliforniaPrimary
- Colorado license
Maternal-fetal medicine specialists near Dr. Hershey
Counts of maternal-fetal medicine specialists with a Dmand AI profile, by place and practice. Each opens the list.
318maternal-fetal medicine specialists in California
2maternal-fetal medicine specialists in San Gabriel
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Douglas Whitmer Hershey billed Medicare for 15 services in 2018
CMS data shows 15 Medicare services from Dr. Hershey across 1 procedure code in 2018. Medicare paid $1,788 for them. Every service was in an office.
Medicare services, 201815
Paid by Medicare$1,788
Procedure codes1
Dr. Hershey's Medicare services by type, 2016 to 2018
- 2016
- 2018
- Imaging
- 2016: 152018: 15No change
Dr. Hershey compared with the California median for maternal-fetal medicine specialists, 2018
- Dr. Hershey
- California median
- Medicare services
- 15vs 3456% below
Medians across 64 maternal-fetal medicine specialists in California with Dmand AI profiles that report each measure.
Dr. Hershey's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Hershey?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hershey and other maternal-fetal medicine specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Whitmer Hershey's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Hershey's median patient age at 47, with 100% women.
Dr. Hershey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
For MedTech and pharma teams
Find maternal-fetal medicine specialists like Dr. Hershey by procedure volume and prescribing
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Dr. Douglas Whitmer Hershey has 12 publications on record
Dmand AI links 12 papers to Dr. Hershey. The most frequent topics are Colorado and Altitude. Dr. Hershey has published most often in Am J Obstet Gynecol. Dr. Hershey's most frequent co-authors are Mark Abzug, MD, James Allan Mcgregor, MD and David B. Schrimmer, MD.
Papers12
Topics Dr. Hershey writes about most
- Colorado
- Altitude
Dr. Hershey's most frequent co-authors
- Mark Abzug, MD1 shared paper
- James Allan Mcgregor, MD1 shared paper
- David B. Schrimmer, MD1 shared paper
Recent publications by Dr. Hershey
Obstet Gynecol
AltitudeAntibodies, ProtozoanColorado
Am J Obstet Gynecol
Diagnosis, DifferentialEndometritisParametritis
Am J Obstet Gynecol
AltitudeColoradoEdema
See who Dr. Hershey researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hershey works with, so you can find a warm path to the right maternal-fetal medicine specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Douglas Whitmer Hershey received $336 in industry payments from 2018 to 2019
CMS Open Payments shows 3 general payments to Dr. Hershey from 3 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. AMAG Pharmaceuticals, Inc. paid the most, $122.
General payments to Dr. Hershey by program year, 2018 to 2019
Companies that paid Dr. Hershey the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas Whitmer Hershey has 1 award and honors on record
Dmand AI lists 1 award for Dr. Hershey.
Awards and honors for Dr. Hershey
- Undated
- ACOG Fellow
Source: Dmand AI Professional Profile Data
Dr. Douglas Whitmer Hershey graduated from Weill Cornell Medicine
Dr. Hershey graduated from Weill Cornell Medicine in 1969. Dr. Hershey is a member of American College of Obstetricians and Gynecologists.
- Medical school
- Board certified in clinical cytogenetics
- Board certified in clinical genetics
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Douglas Whitmer Hershey accepts plans from 3 insurance carriers
Dr. Hershey is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Hershey accepts, by number of carriers
- Medicare3
- PPO3
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Douglas Whitmer Hershey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Douglas Whitmer Hershey
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. Douglas Whitmer Hershey's NPI number?
Dr. Douglas Whitmer Hershey's NPI number is 1902987787. It was assigned on October 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Whitmer Hershey?
Dr. Douglas Whitmer Hershey is a maternal-fetal medicine specialist in San Gabriel, California. The primary specialty in the NPI Registry is Maternal & Fetal Medicine Physician (taxonomy code 207VM0101X).
Where does Dr. Douglas Whitmer Hershey practice?
Dr. Hershey practices at 1710 S Del Mar Ave, San Gabriel, CA 91776.
What is Dr. Douglas Whitmer Hershey's office phone number?
The practice phone on file for Dr. Hershey is (916) 736-6888.
What is Dr. Douglas Whitmer Hershey's medical license number?
Dr. Hershey's California license number on file is 00G189620, one of the licenses on file in 2 states.
Which states has Dr. Douglas Whitmer Hershey been licensed in?
Dmand AI has state licenses on file for Dr. Hershey in California (1983 to 2021) and Colorado (1974 to 1989).
Does Dr. Douglas Whitmer Hershey accept Medicare?
Yes. CMS data shows Dr. Hershey billed Medicare for 15 services in 2018.
Is Dr. Douglas Whitmer Hershey board certified?
Yes. Dr. Hershey is board certified in clinical cytogenetics by the American Board of Medical Genetics and Genomics.
What services does Dr. Douglas Whitmer Hershey bill to Medicare?
In 2018, Dr. Hershey's most billed Medicare services were ultrasound (76811).
Where did Dr. Douglas Whitmer Hershey go to medical school?
Dr. Hershey graduated from Weill Cornell Medicine in 1969.
Show 5 more questionsShow fewer questions
Has Dr. Douglas Whitmer Hershey received payments from drug or device companies?
CMS Open Payments shows $336 in general payments to Dr. Hershey from 3 companies from 2018 to 2019. The largest total came from AMAG Pharmaceuticals, Inc.
How long has Dr. Douglas Whitmer Hershey been practicing?
Dr. Hershey graduated from medical school in 1969, 57 years ago.
Does Dr. Douglas Whitmer Hershey do research?
Dmand AI links 12 publications to Dr. Hershey.
Who does Dr. Douglas Whitmer Hershey publish with?
Dr. Hershey's most frequent co-authors are Mark Abzug, MD (1 shared paper), James Allan Mcgregor, MD (1 shared paper) and David B. Schrimmer, MD (1 shared paper).
What insurance does Dr. Douglas Whitmer Hershey accept?
Dr. Hershey is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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